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57186693145 = 519638994219
BaseRepresentation
bin110101010000100101…
…111011000000011001
312110121102212000021001
4311100211323000121
51414104243140040
642134325145001
74063065604621
oct652045730031
9173542760231
1057186693145
1122286440a7a
12b0bb85b161
13551495118a
142aa6da7881
15174a78a59a
hexd5097b019

57186693145 has 16 divisors (see below), whose sum is σ = 72247896000. Its totient is φ = 43334250048.

The previous prime is 57186693131. The next prime is 57186693163. The reversal of 57186693145 is 54139668175.

It is a cyclic number.

It is not a de Polignac number, because 57186693145 - 213 = 57186684953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559846 + ... + 654064.

It is an arithmetic number, because the mean of its divisors is an integer number (4515493500).

Almost surely, 257186693145 is an apocalyptic number.

It is an amenable number.

57186693145 is a deficient number, since it is larger than the sum of its proper divisors (15061202855).

57186693145 is a wasteful number, since it uses less digits than its factorization.

57186693145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100632.

The product of its digits is 5443200, while the sum is 55.

The spelling of 57186693145 in words is "fifty-seven billion, one hundred eighty-six million, six hundred ninety-three thousand, one hundred forty-five".

Divisors: 1 5 19 95 6389 31945 94219 121391 471095 606955 1790161 8950805 601965191 3009825955 11437338629 57186693145