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55588100 = 22523891429
BaseRepresentation
bin1101010000001…
…1010100000100
310212121011112112
43110003110010
5103212304400
65303240152
71243330301
oct324032404
9125534475
1055588100
1129418187
1216749058
13b693a89
1475500a8
154d30835
hex3503504

55588100 has 36 divisors (see below), whose sum is σ = 121020900. Its totient is φ = 22162560.

The previous prime is 55588069. The next prime is 55588111. The reversal of 55588100 is 188555.

It can be written as a sum of positive squares in 6 ways, for example, as 14807104 + 40780996 = 3848^2 + 6386^2 .

It is a super-2 number, since 2×555881002 = 6180073723220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38186 + ... + 39614.

Almost surely, 255588100 is an apocalyptic number.

55588100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55588100 is an abundant number, since it is smaller than the sum of its proper divisors (65432800).

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

55588100 is a wasteful number, since it uses less digits than its factorization.

55588100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832 (or 1825 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 32.

The square root of 55588100 is about 7455.7427530730. The cubic root of 55588100 is about 381.6459078184.

The spelling of 55588100 in words is "fifty-five million, five hundred eighty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 389 778 1429 1556 1945 2858 3890 5716 7145 7780 9725 14290 19450 28580 35725 38900 71450 142900 555881 1111762 2223524 2779405 5558810 11117620 13897025 27794050 55588100