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57690052557 = 357133677789
BaseRepresentation
bin110101101110100110…
…000101011111001101
312111220112000022120020
4311232212011133031
51421122123140212
642300310012353
74111420233024
oct655646053715
9174815008506
1057690052557
1122514592395
12b2203470b9
135595011397
142b13b958bb
151779a68d8c
hexd6e9857cd

57690052557 has 8 divisors (see below), whose sum is σ = 77054783520. Its totient is φ = 38392678320.

The previous prime is 57690052549. The next prime is 57690052579. The reversal of 57690052557 is 75525009675.

It is a happy number.

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

It is not a de Polignac number, because 57690052557 - 23 = 57690052549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57690452557) 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, 16837182 + ... + 16840607.

It is an arithmetic number, because the mean of its divisors is an integer number (9631847940).

Almost surely, 257690052557 is an apocalyptic number.

It is an amenable number.

57690052557 is a deficient number, since it is larger than the sum of its proper divisors (19364730963).

57690052557 is a wasteful number, since it uses less digits than its factorization.

57690052557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33678363.

The product of its (nonzero) digits is 3307500, while the sum is 51.

The spelling of 57690052557 in words is "fifty-seven billion, six hundred ninety million, fifty-two thousand, five hundred fifty-seven".

Divisors: 1 3 571 1713 33677789 101033367 19230017519 57690052557