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57914945 = 51119157353
BaseRepresentation
bin1101110011101…
…1011001000001
311000222101100222
43130323121001
5104311234240
65425152425
71302161144
oct334733101
9130871328
1057914945
112a7673a0
121748b715
13bcc9bca
14799805b
15513eeb5
hex373b641

57914945 has 32 divisors (see below), whose sum is σ = 80542080. Its totient is φ = 39536640.

The previous prime is 57914939. The next prime is 57914947. The reversal of 57914945 is 54941975.

It is a de Polignac number, because none of the positive numbers 2k-57914945 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57914896 and 57914905.

It is not an unprimeable number, because it can be changed into a prime (57914947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163889 + ... + 164241.

It is an arithmetic number, because the mean of its divisors is an integer number (2516940).

Almost surely, 257914945 is an apocalyptic number.

57914945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57914945 is a deficient number, since it is larger than the sum of its proper divisors (22627135).

57914945 is a wasteful number, since it uses less digits than its factorization.

57914945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its digits is 226800, while the sum is 44.

The square root of 57914945 is about 7610.1869228029. The cubic root of 57914945 is about 386.8983545902.

The spelling of 57914945 in words is "fifty-seven million, nine hundred fourteen thousand, nine hundred forty-five".

Divisors: 1 5 11 19 55 95 157 209 353 785 1045 1727 1765 2983 3883 6707 8635 14915 19415 32813 33535 55421 73777 164065 277105 368885 609631 1052999 3048155 5264995 11582989 57914945