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54131944 = 2317398029
BaseRepresentation
bin1100111001111…
…1110011101000
310202212012001211
43032133303220
5102324210234
65212122504
71225054036
oct316376350
9122765054
1054131944
1128613149
1216166434
13b2a4049
147291556
154b44164
hex339fce8

54131944 has 16 divisors (see below), whose sum is σ = 107468100. Its totient is φ = 25473792.

The previous prime is 54131941. The next prime is 54131953. The reversal of 54131944 is 44913145.

It can be written as a sum of positive squares in 2 ways, for example, as 44756100 + 9375844 = 6690^2 + 3062^2 .

It is a super-2 number, since 2×541319442 = 5860534722438272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54131941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198879 + ... + 199150.

Almost surely, 254131944 is an apocalyptic number.

It is an amenable number.

54131944 is a deficient number, since it is larger than the sum of its proper divisors (53336156).

54131944 is a wasteful number, since it uses less digits than its factorization.

54131944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398052 (or 398048 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

The square root of 54131944 is about 7357.4414030966. The cubic root of 54131944 is about 378.2839146165.

The spelling of 54131944 in words is "fifty-four million, one hundred thirty-one thousand, nine hundred forty-four".

Divisors: 1 2 4 8 17 34 68 136 398029 796058 1592116 3184232 6766493 13532986 27065972 54131944