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57357802169 is a prime number
BaseRepresentation
bin110101011010110010…
…101001101010111001
312111001100211020201022
4311122302221222321
51414432044132134
642203320432225
74100244163013
oct653262515271
9174040736638
1057357802169
1122363a90798
12b149018675
135541231215
142ac19c91b3
15175a7d952e
hexd5aca9ab9

57357802169 has 2 divisors, whose sum is σ = 57357802170. Its totient is φ = 57357802168.

The previous prime is 57357802081. The next prime is 57357802231. The reversal of 57357802169 is 96120875375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38568246544 + 18789555625 = 196388^2 + 137075^2 .

It is a cyclic number.

It is not a de Polignac number, because 57357802169 - 28 = 57357801913 is a prime.

It is a super-2 number, since 2×573578021692 (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 57357802169.

It is not a weakly prime, because it can be changed into another prime (57357808169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28678901084 + 28678901085.

It is an arithmetic number, because the mean of its divisors is an integer number (28678901085).

Almost surely, 257357802169 is an apocalyptic number.

It is an amenable number.

57357802169 is a deficient number, since it is larger than the sum of its proper divisors (1).

57357802169 is an equidigital number, since it uses as much as digits as its factorization.

57357802169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 53.

The spelling of 57357802169 in words is "fifty-seven billion, three hundred fifty-seven million, eight hundred two thousand, one hundred sixty-nine".