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55126900 = 2252551269
BaseRepresentation
bin1101001001001…
…0101101110100
310211201201220001
43102102231310
5103103030100
65245321044
71236366553
oct322225564
9124651801
1055126900
1129132724
1216566184
13b561b8a
14746dd9a
154c8dd6a
hex3492b74

55126900 has 18 divisors (see below), whose sum is σ = 119625590. Its totient is φ = 22050720.

The previous prime is 55126891. The next prime is 55126901. The reversal of 55126900 is 962155.

55126900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 13704804 + 41422096 = 3702^2 + 6436^2 .

It is a super-2 number, since 2×551269002 = 6077950207220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55126901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275535 + ... + 275734.

Almost surely, 255126900 is an apocalyptic number.

55126900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55126900 is an abundant number, since it is smaller than the sum of its proper divisors (64498690).

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

55126900 is a wasteful number, since it uses less digits than its factorization.

55126900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551283 (or 551276 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 55126900 is about 7424.7491540119. The cubic root of 55126900 is about 380.5875030356.

The spelling of 55126900 in words is "fifty-five million, one hundred twenty-six thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 551269 1102538 2205076 2756345 5512690 11025380 13781725 27563450 55126900