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54831136 = 254014273
BaseRepresentation
bin1101000100101…
…0100000100000
310211011201011211
43101022200200
5103014044021
65235115504
71234025353
oct321124040
9124151154
1054831136
1128a50498
1216442b94
13b48a379
1473d429a
154c313e1
hex344a820

54831136 has 24 divisors (see below), whose sum is σ = 108243324. Its totient is φ = 27340800.

The previous prime is 54831113. The next prime is 54831163. The reversal of 54831136 is 63113845.

It can be written as a sum of positive squares in 2 ways, for example, as 52128400 + 2702736 = 7220^2 + 1644^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 54831098 and 54831107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10696 + ... + 14968.

Almost surely, 254831136 is an apocalyptic number.

It is an amenable number.

54831136 is a deficient number, since it is larger than the sum of its proper divisors (53412188).

54831136 is a wasteful number, since it uses less digits than its factorization.

54831136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684 (or 4676 counting only the distinct ones).

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

The square root of 54831136 is about 7404.8049265325. The cubic root of 54831136 is about 379.9056460106.

It can be divided in two parts, 548 and 31136, that added together give a square (31684 = 1782).

The spelling of 54831136 in words is "fifty-four million, eight hundred thirty-one thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 32 401 802 1604 3208 4273 6416 8546 12832 17092 34184 68368 136736 1713473 3426946 6853892 13707784 27415568 54831136