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83057885508 = 22313745771399
BaseRepresentation
bin100110101011010100…
…0101100000101000100
321221101110001202022210
41031112220230011010
52330100304314013
6102053430423420
76000152243463
oct1152650540504
9257343052283
1083057885508
1132252013794
121411bb01b70
137aa8805a20
14403cd2c9da
152261b98cc3
hex1356a2c144

83057885508 has 48 divisors (see below), whose sum is σ = 208740470400. Its totient is φ = 25552487424.

The previous prime is 83057885461. The next prime is 83057885557. The reversal of 83057885508 is 80558875038.

It is a super-2 number, since 2×830578855082 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1127593 + ... + 1198991.

It is an arithmetic number, because the mean of its divisors is an integer number (4348759800).

Almost surely, 283057885508 is an apocalyptic number.

It is an amenable number.

83057885508 is an abundant number, since it is smaller than the sum of its proper divisors (125682584892).

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

83057885508 is a wasteful number, since it uses less digits than its factorization.

83057885508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78876 (or 78874 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 57.

The spelling of 83057885508 in words is "eighty-three billion, fifty-seven million, eight hundred eighty-five thousand, five hundred eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 7457 14914 22371 29828 44742 71399 89484 96941 142798 193882 214197 285596 290823 387764 428394 581646 856788 928187 1163292 1856374 2784561 3712748 5569122 11138244 532422343 1064844686 1597267029 2129689372 3194534058 6389068116 6921490459 13842980918 20764471377 27685961836 41528942754 83057885508