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57289285368 = 2335737113783
BaseRepresentation
bin110101010110101101…
…010001111011111000
312110212120220020100000
4311112231101323320
51414312024112433
642152432113000
74065452614410
oct652655217370
9173776806300
1057289285368
1122329343037
12b12a095760
13552cc91833
142ab6871640
1517547a3113
hexd56b51ef8

57289285368 has 192 divisors, whose sum is σ = 188863234560. Its totient is φ = 15925838976.

The previous prime is 57289285321. The next prime is 57289285369. The reversal of 57289285368 is 86358298275.

57289285368 is a `hidden beast` number, since 5 + 7 + 2 + 8 + 92 + 8 + 536 + 8 = 666.

It is a super-2 number, since 2×572892853682 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57289285369) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 446605 + ... + 560387.

It is an arithmetic number, because the mean of its divisors is an integer number (983662680).

Almost surely, 257289285368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57289285368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94431617280).

57289285368 is an abundant number, since it is smaller than the sum of its proper divisors (131573949192).

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

57289285368 is a wasteful number, since it uses less digits than its factorization.

57289285368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113848 (or 113832 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 63.

The spelling of 57289285368 in words is "fifty-seven billion, two hundred eighty-nine million, two hundred eighty-five thousand, three hundred sixty-eight".