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57150171697 is a prime number
BaseRepresentation
bin110101001110011010…
…100110101000110001
312110111220010112020211
4311032122212220301
51414020420443242
642130542304121
74062143305243
oct651632465061
9173456115224
1057150171697
1122267866963
12b0ab588041
13550a204a58
142aa21bc093
151747474317
hexd4e6a6a31

57150171697 has 2 divisors, whose sum is σ = 57150171698. Its totient is φ = 57150171696.

The previous prime is 57150171691. The next prime is 57150171739. The reversal of 57150171697 is 79617105175.

57150171697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47033030641 + 10117141056 = 216871^2 + 100584^2 .

It is a cyclic number.

It is not a de Polignac number, because 57150171697 - 219 = 57149647409 is a prime.

It is a super-2 number, since 2×571501716972 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57150171697.

It is not a weakly prime, because it can be changed into another prime (57150171691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28575085848 + 28575085849.

It is an arithmetic number, because the mean of its divisors is an integer number (28575085849).

Almost surely, 257150171697 is an apocalyptic number.

It is an amenable number.

57150171697 is a deficient number, since it is larger than the sum of its proper divisors (1).

57150171697 is an equidigital number, since it uses as much as digits as its factorization.

57150171697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 463050, while the sum is 49.

The spelling of 57150171697 in words is "fifty-seven billion, one hundred fifty million, one hundred seventy-one thousand, six hundred ninety-seven".