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57441138 = 2361156943
BaseRepresentation
bin1101101100011…
…1101101110010
311000002022102120
43123013231302
5104201104023
65411055110
71265145606
oct333075562
9130068376
1057441138
112a473417
12172a1496
13bb92351
1478b3506
1550998e3
hex36c7b72

57441138 has 16 divisors (see below), whose sum is σ = 116766336. Its totient is φ = 18833040.

The previous prime is 57441127. The next prime is 57441157. The reversal of 57441138 is 83114475.

It is a junction number, because it is equal to n+sod(n) for n = 57441099 and 57441108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78106 + ... + 78837.

It is an arithmetic number, because the mean of its divisors is an integer number (7297896).

Almost surely, 257441138 is an apocalyptic number.

57441138 is an abundant number, since it is smaller than the sum of its proper divisors (59325198).

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

57441138 is a wasteful number, since it uses less digits than its factorization.

57441138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157009.

The product of its digits is 13440, while the sum is 33.

The square root of 57441138 is about 7578.9932049053. The cubic root of 57441138 is about 385.8403816221.

The spelling of 57441138 in words is "fifty-seven million, four hundred forty-one thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 61 122 183 366 156943 313886 470829 941658 9573523 19147046 28720569 57441138