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57049243215 = 3556310616367
BaseRepresentation
bin110101001000011001…
…100101111001001111
312110020212012211101220
4311020121211321033
51413314101240330
642112535134423
74056506365146
oct651031457117
9173225184356
1057049243215
11222158a0898
12b081814413
1354c2327763
142a92a2875d
15173d689710
hexd48665e4f

57049243215 has 32 divisors (see below), whose sum is σ = 91541477376. Its totient is φ = 30338828160.

The previous prime is 57049243159. The next prime is 57049243249. The reversal of 57049243215 is 51234294075.

It is a happy number.

It is not a de Polignac number, because 57049243215 - 28 = 57049242959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8956962 + ... + 8963328.

It is an arithmetic number, because the mean of its divisors is an integer number (2860671168).

Almost surely, 257049243215 is an apocalyptic number.

57049243215 is a deficient number, since it is larger than the sum of its proper divisors (34492234161).

57049243215 is a wasteful number, since it uses less digits than its factorization.

57049243215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7999.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 57049243215 in words is "fifty-seven billion, forty-nine million, two hundred forty-three thousand, two hundred fifteen".

Divisors: 1 3 5 15 563 1061 1689 2815 3183 5305 6367 8445 15915 19101 31835 95505 597343 1792029 2986715 3584621 6755387 8960145 10753863 17923105 20266161 33776935 53769315 101330805 3803282881 11409848643 19016414405 57049243215