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57405672030 = 23571471185833
BaseRepresentation
bin110101011101101001…
…010000101001011110
312111011200220021211010
4311131221100221132
51420031323001110
642212150440050
74101365106210
oct653551205136
9174150807733
1057405672030
1122389007063
12b161063026
13554b121b95
142ac80ca5b0
15175eae3020
hexd5da50a5e

57405672030 has 64 divisors (see below), whose sum is σ = 157563445248. Its totient is φ = 13112305920.

The previous prime is 57405672017. The next prime is 57405672043. The reversal of 57405672030 is 3027650475.

It is an interprime number because it is at equal distance from previous prime (57405672017) and next prime (57405672043).

It is a super-2 number, since 2×574056720302 (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 57405672030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215994 + ... + 401826.

It is an arithmetic number, because the mean of its divisors is an integer number (2461928832).

Almost surely, 257405672030 is an apocalyptic number.

57405672030 is an abundant number, since it is smaller than the sum of its proper divisors (100157773218).

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

57405672030 is a wasteful number, since it uses less digits than its factorization.

57405672030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187321.

The product of its (nonzero) digits is 176400, while the sum is 39.

The spelling of 57405672030 in words is "fifty-seven billion, four hundred five million, six hundred seventy-two thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 1471 2942 4413 7355 8826 10297 14710 20594 22065 30891 44130 51485 61782 102970 154455 185833 308910 371666 557499 929165 1114998 1300831 1858330 2601662 2787495 3902493 5574990 6504155 7804986 13008310 19512465 39024930 273360343 546720686 820081029 1366801715 1640162058 1913522401 2733603430 3827044802 4100405145 5740567203 8200810290 9567612005 11481134406 19135224010 28702836015 57405672030