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50493771540 = 223253185710559
BaseRepresentation
bin101111000001101010…
…011100111100010100
311211022222221100211200
4233001222130330110
51311402401142130
635110240432500
73435165655632
oct570152347424
9154288840750
1050493771540
111a461465a03
129952318730
1349b9153b34
142630144352
1514a7dcc760
hexbc1a9cf14

50493771540 has 144 divisors (see below), whose sum is σ = 158304706560. Its totient is φ = 13014213120.

The previous prime is 50493771539. The next prime is 50493771541. The reversal of 50493771540 is 4517739405.

50493771540 is a `hidden beast` number, since 5 + 0 + 4 + 9 + 37 + 71 + 540 = 666.

50493771540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (50493771539) and next prime (50493771541).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50493771541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4776781 + ... + 4787339.

It is an arithmetic number, because the mean of its divisors is an integer number (1099338240).

Almost surely, 250493771540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50493771540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79152353280).

50493771540 is an abundant number, since it is smaller than the sum of its proper divisors (107810935020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50493771540 is a wasteful number, since it uses less digits than its factorization.

50493771540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11462 (or 11457 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 50493771540 in words is "fifty billion, four hundred ninety-three million, seven hundred seventy-one thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 31 36 45 60 62 90 93 124 155 180 186 279 310 372 465 558 620 857 930 1116 1395 1714 1860 2571 2790 3428 4285 5142 5580 7713 8570 10284 10559 12855 15426 17140 21118 25710 26567 30852 31677 38565 42236 51420 52795 53134 63354 77130 79701 95031 105590 106268 126708 132835 154260 158385 159402 190062 211180 239103 265670 316770 318804 327329 380124 398505 475155 478206 531340 633540 654658 797010 950310 956412 981987 1195515 1309316 1594020 1636645 1900620 1963974 2391030 2945961 3273290 3927948 4782060 4909935 5891922 6546580 9049063 9819870 11783844 14729805 18098126 19639740 27147189 29459610 36196252 45245315 54294378 58919220 81441567 90490630 108588756 135735945 162883134 180981260 271471890 280520953 325766268 407207835 542943780 561041906 814415670 841562859 1122083812 1402604765 1628831340 1683125718 2524688577 2805209530 3366251436 4207814295 5049377154 5610419060 8415628590 10098754308 12623442885 16831257180 25246885770 50493771540