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55364180 = 2252768209
BaseRepresentation
bin1101001100110…
…0101001010100
310212011210101012
43103030221110
5103133123210
65254351352
71241405414
oct323145124
9125153335
1055364180
1129284a23
121665b558
13b615b91
1474d2644
154cd9305
hex34cca54

55364180 has 12 divisors (see below), whose sum is σ = 116264820. Its totient is φ = 22145664.

The previous prime is 55364159. The next prime is 55364209. The reversal of 55364180 is 8146355.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27019204 + 28344976 = 5198^2 + 5324^2 .

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, 1384085 + ... + 1384124.

It is an arithmetic number, because the mean of its divisors is an integer number (9688735).

Almost surely, 255364180 is an apocalyptic number.

It is an amenable number.

55364180 is an abundant number, since it is smaller than the sum of its proper divisors (60900640).

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

55364180 is a wasteful number, since it uses less digits than its factorization.

55364180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768218 (or 2768216 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 55364180 is about 7440.7109875334. The cubic root of 55364180 is about 381.1327694747.

The spelling of 55364180 in words is "fifty-five million, three hundred sixty-four thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 2768209 5536418 11072836 13841045 27682090 55364180