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57442724867 = 1142112403957
BaseRepresentation
bin110101011111110110…
…100110110000000011
312111021021121202202102
4311133312212300003
51420120314143432
642215552541015
74102325051033
oct653766466003
9174237552672
1057442724867
11223a7a14440
12b17155176b
1355559c6138
142accdb38c3
151762eb1962
hexd5fda6c03

57442724867 has 8 divisors (see below), whose sum is σ = 62813643312. Its totient is φ = 52096615200.

The previous prime is 57442724851. The next prime is 57442724879. The reversal of 57442724867 is 76842724475.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57442724867 - 24 = 57442724851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57442724827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6197348 + ... + 6206609.

It is an arithmetic number, because the mean of its divisors is an integer number (7851705414).

Almost surely, 257442724867 is an apocalyptic number.

57442724867 is a deficient number, since it is larger than the sum of its proper divisors (5370918445).

57442724867 is a wasteful number, since it uses less digits than its factorization.

57442724867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12404389.

The product of its digits is 21073920, while the sum is 56.

The spelling of 57442724867 in words is "fifty-seven billion, four hundred forty-two million, seven hundred twenty-four thousand, eight hundred sixty-seven".

Divisors: 1 11 421 4631 12403957 136443527 5222065897 57442724867