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49286520 = 23325791733
BaseRepresentation
bin1011110000000…
…0110101111000
310102202000101200
42330000311320
5100104132040
64520214200
71135633323
oct274006570
9112660350
1049286520
1125903768
121460a360
13a29872a
14678d7ba
1544d8630
hex2f00d78

49286520 has 96 divisors (see below), whose sum is σ = 162302400. Its totient is φ = 12969216.

The previous prime is 49286491. The next prime is 49286527. The reversal of 49286520 is 2568294.

It is a happy number.

It is a super-2 number, since 2×492865202 = 4858322107420800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49286527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27574 + ... + 29306.

It is an arithmetic number, because the mean of its divisors is an integer number (1690650).

Almost surely, 249286520 is an apocalyptic number.

49286520 is a gapful number since it is divisible by the number (40) 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 49286520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81151200).

49286520 is an abundant number, since it is smaller than the sum of its proper divisors (113015880).

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

49286520 is a wasteful number, since it uses less digits than its factorization.

49286520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1822 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 49286520 is about 7020.4358839035. The cubic root of 49286520 is about 366.6424263130.

The spelling of 49286520 in words is "forty-nine million, two hundred eighty-six thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 79 90 120 158 180 237 316 360 395 474 632 711 790 948 1185 1422 1580 1733 1896 2370 2844 3160 3466 3555 4740 5199 5688 6932 7110 8665 9480 10398 13864 14220 15597 17330 20796 25995 28440 31194 34660 41592 51990 62388 69320 77985 103980 124776 136907 155970 207960 273814 311940 410721 547628 623880 684535 821442 1095256 1232163 1369070 1642884 2053605 2464326 2738140 3285768 4107210 4928652 5476280 6160815 8214420 9857304 12321630 16428840 24643260 49286520