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55048772 = 22432711181
BaseRepresentation
bin1101000111111…
…1101001000100
310211120202201102
43101333221010
5103043030042
65243515232
71235623022
oct321775104
9124522642
1055048772
1129089a59
1216528b18
13b53544c
14744d712
154c75b32
hex347fa44

55048772 has 24 divisors (see below), whose sum is σ = 99023232. Its totient is φ = 26762400.

The previous prime is 55048769. The next prime is 55048781. The reversal of 55048772 is 27784055.

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, 46022 + ... + 47202.

It is an arithmetic number, because the mean of its divisors is an integer number (4125968).

Almost surely, 255048772 is an apocalyptic number.

It is an amenable number.

55048772 is a deficient number, since it is larger than the sum of its proper divisors (43974460).

55048772 is a wasteful number, since it uses less digits than its factorization.

55048772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 55048772 is about 7419.4859660222. The cubic root of 55048772 is about 380.4076235304.

The spelling of 55048772 in words is "fifty-five million, forty-eight thousand, seven hundred seventy-two".

Divisors: 1 2 4 43 86 172 271 542 1084 1181 2362 4724 11653 23306 46612 50783 101566 203132 320051 640102 1280204 13762193 27524386 55048772