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55008632 = 2373131687
BaseRepresentation
bin1101000111010…
…1110101111000
310211111201122202
43101311311320
5103040234012
65243005332
71235365010
oct321656570
9124451582
1055008632
1129061888
1216509848
13b5200b3
14743cc40
154c68cc2
hex3475d78

55008632 has 32 divisors (see below), whose sum is σ = 121681920. Its totient is φ = 22813920.

The previous prime is 55008623. The next prime is 55008671. The reversal of 55008632 is 23680055.

It is a super-2 number, since 2×550086322 = 6051899189022848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55008595 and 55008604.

It is a congruent number.

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, 14108 + ... + 17579.

It is an arithmetic number, because the mean of its divisors is an integer number (3802560).

Almost surely, 255008632 is an apocalyptic number.

It is an amenable number.

55008632 is an abundant number, since it is smaller than the sum of its proper divisors (66673288).

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

55008632 is a wasteful number, since it uses less digits than its factorization.

55008632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31731 (or 31727 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 55008632 is about 7416.7804335844. The cubic root of 55008632 is about 380.3151402388.

Adding to 55008632 its reverse (23680055), we get a palindrome (78688687).

The spelling of 55008632 in words is "fifty-five million, eight thousand, six hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 217 248 434 868 1736 31687 63374 126748 221809 253496 443618 887236 982297 1774472 1964594 3929188 6876079 7858376 13752158 27504316 55008632