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44942157 = 32133112391
BaseRepresentation
bin1010101101110…
…0001101001101
310010120022001100
42223130031031
543001122112
64243133313
71054000461
oct253341515
9103508040
1044942157
1123406787
1213074239
1394071c0
145d7c4a1
153e2b2dc
hex2adc34d

44942157 has 24 divisors (see below), whose sum is σ = 72171008. Its totient is φ = 26762400.

The previous prime is 44942153. The next prime is 44942159. The reversal of 44942157 is 75124944.

It is a happy number.

It is not a de Polignac number, because 44942157 - 22 = 44942153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44942153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2569 + ... + 9822.

Almost surely, 244942157 is an apocalyptic number.

It is an amenable number.

44942157 is a deficient number, since it is larger than the sum of its proper divisors (27228851).

44942157 is a wasteful number, since it uses less digits than its factorization.

44942157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12441 (or 12438 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 44942157 is about 6703.8911834844. The cubic root of 44942157 is about 355.5368640818.

The spelling of 44942157 in words is "forty-four million, nine hundred forty-two thousand, one hundred fifty-seven".

Divisors: 1 3 9 13 31 39 93 117 279 403 1209 3627 12391 37173 111519 161083 384121 483249 1152363 1449747 3457089 4993573 14980719 44942157