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55015152 = 2433730977
BaseRepresentation
bin1101000111011…
…1011011110000
310211112001121020
43101313123300
5103040441102
65243055440
71235423013
oct321673360
9124461536
1055015152
1129066775
1216511580
13b52305a
14744137a
154c6abbc
hex34776f0

55015152 has 40 divisors (see below), whose sum is σ = 145968336. Its totient is φ = 17842176.

The previous prime is 55015133. The next prime is 55015157. The reversal of 55015152 is 25151055.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55015157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13713 + ... + 17264.

Almost surely, 255015152 is an apocalyptic number.

It is an amenable number.

55015152 is an abundant number, since it is smaller than the sum of its proper divisors (90953184).

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

55015152 is a wasteful number, since it uses less digits than its factorization.

55015152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31025 (or 31019 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 55015152 is about 7417.2199643802. The cubic root of 55015152 is about 380.3301654974.

The spelling of 55015152 in words is "fifty-five million, fifteen thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 37 48 74 111 148 222 296 444 592 888 1776 30977 61954 92931 123908 185862 247816 371724 495632 743448 1146149 1486896 2292298 3438447 4584596 6876894 9169192 13753788 18338384 27507576 55015152