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57315232340 = 2254366645619
BaseRepresentation
bin110101011000010000…
…010000101001010100
312110221101201110212222
4311120100100221110
51414340144413330
642155200201512
74066216302512
oct653020205124
9173841643788
1057315232340
1122341a55413
12b136909298
135535477a82
142aba0a74b2
151756bcb0e5
hexd58410a54

57315232340 has 24 divisors (see below), whose sum is σ = 123161105760. Its totient is φ = 22392927648.

The previous prime is 57315232319. The next prime is 57315232349. The reversal of 57315232340 is 4323251375.

It is a self number, because there is not a number n which added to its sum of digits gives 57315232340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57315232349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33321950 + ... + 33323669.

It is an arithmetic number, because the mean of its divisors is an integer number (5131712740).

Almost surely, 257315232340 is an apocalyptic number.

It is an amenable number.

57315232340 is an abundant number, since it is smaller than the sum of its proper divisors (65845873420).

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

57315232340 is a wasteful number, since it uses less digits than its factorization.

57315232340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66645671 (or 66645669 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 35.

The spelling of 57315232340 in words is "fifty-seven billion, three hundred fifteen million, two hundred thirty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 43 86 172 215 430 860 66645619 133291238 266582476 333228095 666456190 1332912380 2865761617 5731523234 11463046468 14328808085 28657616170 57315232340