Search a number
-
+
57548736681 = 343163616997
BaseRepresentation
bin110101100110001011…
…000000100010101001
312111112200002201121220
4311212023000202221
51420324434033211
642234301052253
74105053122262
oct654613004251
9174480081556
1057548736681
1122451841707
12b1a0b57089
135571963117
142add0cb969
15176c452806
hexd662c08a9

57548736681 has 16 divisors (see below), whose sum is σ = 76932764928. Its totient is φ = 38265321600.

The previous prime is 57548736671. The next prime is 57548736709. The reversal of 57548736681 is 18663784575.

It is not a de Polignac number, because 57548736681 - 233 = 48958802089 is a prime.

It is a super-2 number, since 2×575487366812 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57548736671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8221275 + ... + 8228271.

It is an arithmetic number, because the mean of its divisors is an integer number (4808297808).

Almost surely, 257548736681 is an apocalyptic number.

It is an amenable number.

57548736681 is a deficient number, since it is larger than the sum of its proper divisors (19384028247).

57548736681 is a wasteful number, since it uses less digits than its factorization.

57548736681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13792.

The product of its digits is 33868800, while the sum is 60.

The spelling of 57548736681 in words is "fifty-seven billion, five hundred forty-eight million, seven hundred thirty-six thousand, six hundred eighty-one".

Divisors: 1 3 431 1293 6361 6997 19083 20991 2741591 3015707 8224773 9047121 44507917 133523751 19182912227 57548736681