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55130652 = 22334571117
BaseRepresentation
bin1101001001001…
…1101000011100
310211201221001000
43102103220130
5103103140102
65245350300
71236413523
oct322235034
9124657030
1055130652
1129135525
1216568390
13b5637b5
1474714ba
154c9001c
hex3493a1c

55130652 has 48 divisors (see below), whose sum is σ = 143372320. Its totient is φ = 18320256.

The previous prime is 55130651. The next prime is 55130689. The reversal of 55130652 is 25603155.

55130652 is a `hidden beast` number, since 5 + 5 + 1 + 3 + 0 + 652 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55130651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48798 + ... + 49914.

Almost surely, 255130652 is an apocalyptic number.

It is an amenable number.

55130652 is an abundant number, since it is smaller than the sum of its proper divisors (88241668).

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

55130652 is a wasteful number, since it uses less digits than its factorization.

55130652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 55130652 is about 7425.0018181816. The cubic root of 55130652 is about 380.5961372470.

Subtracting from 55130652 its sum of digits (27), we obtain a square (55130625 = 74252).

The spelling of 55130652 in words is "fifty-five million, one hundred thirty thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 457 914 1117 1371 1828 2234 2742 3351 4113 4468 5484 6702 8226 10053 12339 13404 16452 20106 24678 30159 40212 49356 60318 120636 510469 1020938 1531407 2041876 3062814 4594221 6125628 9188442 13782663 18376884 27565326 55130652