Search a number
-
+
57302860972 = 2272697607921
BaseRepresentation
bin110101010111100001…
…000100010010101100
312110220112102221120011
4311113201010102230
51414324013022342
642154035103004
74066006165420
oct652741042254
9173815387504
1057302860972
1122335a75645
12b132741a64
135532a35a36
142ab85a6b80
151755a85717
hexd578444ac

57302860972 has 24 divisors (see below), whose sum is σ = 115031780640. Its totient is φ = 24467070720.

The previous prime is 57302860961. The next prime is 57302860973. The reversal of 57302860972 is 27906820375.

It is not an unprimeable number, because it can be changed into a prime (57302860973) 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, 3796429 + ... + 3811492.

It is an arithmetic number, because the mean of its divisors is an integer number (4792990860).

Almost surely, 257302860972 is an apocalyptic number.

It is an amenable number.

57302860972 is an abundant number, since it is smaller than the sum of its proper divisors (57728919668).

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

57302860972 is a wasteful number, since it uses less digits than its factorization.

57302860972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608201 (or 7608199 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 57302860972 in words is "fifty-seven billion, three hundred two million, eight hundred sixty thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 269 538 1076 1883 3766 7532 7607921 15215842 30431684 53255447 106510894 213021788 2046530749 4093061498 8186122996 14325715243 28651430486 57302860972