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57163105450 = 25211103932919
BaseRepresentation
bin110101001111001011…
…111100010010101010
312110112210110122000201
4311033023330102222
51414032223333300
642132123422414
74062361244053
oct651713742252
9173483418021
1057163105450
11222740a0210
12b0b3984a0a
13550cab2a69
142aa3bc772a
15174867b66a
hexd4f2fc4aa

57163105450 has 24 divisors (see below), whose sum is σ = 115989138720. Its totient is φ = 20786583600.

The previous prime is 57163105397. The next prime is 57163105459. The reversal of 57163105450 is 5450136175.

It is not an unprimeable number, because it can be changed into a prime (57163105459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51965910 + ... + 51967009.

It is an arithmetic number, because the mean of its divisors is an integer number (4832880780).

Almost surely, 257163105450 is an apocalyptic number.

57163105450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57163105450 is an abundant number, since it is smaller than the sum of its proper divisors (58826033270).

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

57163105450 is a wasteful number, since it uses less digits than its factorization.

57163105450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103932942 (or 103932937 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 57163105450 in words is "fifty-seven billion, one hundred sixty-three million, one hundred five thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 103932919 207865838 519664595 1039329190 1143262109 2286524218 2598322975 5196645950 5716310545 11432621090 28581552725 57163105450