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1493500020 = 2235311375861
BaseRepresentation
bin101100100000101…
…0000000001110100
310212002021122212120
41121001100001310
511024314000040
6404110515540
752003353315
oct13101200164
93762248776
101493500020
116a7050741
12358205bb0
131aa55782c
141024d060c
158b1b37d0
hex59050074

1493500020 has 96 divisors (see below), whose sum is σ = 4348947456. Its totient is φ = 382540800.

The previous prime is 1493500007. The next prime is 1493500049. The reversal of 1493500020 is 200053941.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251890 + ... + 257750.

It is an arithmetic number, because the mean of its divisors is an integer number (45301536).

Almost surely, 21493500020 is an apocalyptic number.

1493500020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1493500020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2174473728).

1493500020 is an abundant number, since it is smaller than the sum of its proper divisors (2855447436).

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

1493500020 is a wasteful number, since it uses less digits than its factorization.

1493500020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6041 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1493500020 is about 38645.8279766393. The cubic root of 1493500020 is about 1143.0583774068.

Adding to 1493500020 its reverse (200053941), we get a palindrome (1693553961).

The spelling of 1493500020 in words is "one billion, four hundred ninety-three million, five hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 137 155 186 274 310 372 411 465 548 620 685 822 930 1370 1644 1860 2055 2740 4110 4247 5861 8220 8494 11722 12741 16988 17583 21235 23444 25482 29305 35166 42470 50964 58610 63705 70332 84940 87915 117220 127410 175830 181691 254820 351660 363382 545073 726764 802957 908455 1090146 1605914 1816910 2180292 2408871 2725365 3211828 3633820 4014785 4817742 5450730 8029570 9635484 10901460 12044355 16059140 24088710 24891667 48177420 49783334 74675001 99566668 124458335 149350002 248916670 298700004 373375005 497833340 746750010 1493500020