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55667300 = 22521342821
BaseRepresentation
bin1101010001011…
…0101001100100
310212202012011212
43110112221210
5103222323200
65305050552
71244110223
oct324265144
9125665155
1055667300
1129471737
1216786a58
13b6c0b40
147570cba
154d49035
hex3516a64

55667300 has 36 divisors (see below), whose sum is σ = 130093236. Its totient is φ = 20553600.

The previous prime is 55667273. The next prime is 55667309. The reversal of 55667300 is 376655.

It can be written as a sum of positive squares in 6 ways, for example, as 18992164 + 36675136 = 4358^2 + 6056^2 .

It is not an unprimeable number, because it can be changed into a prime (55667309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20111 + ... + 22710.

It is an arithmetic number, because the mean of its divisors is an integer number (3613701).

Almost surely, 255667300 is an apocalyptic number.

55667300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55667300 is an abundant number, since it is smaller than the sum of its proper divisors (74425936).

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

55667300 is a wasteful number, since it uses less digits than its factorization.

55667300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42848 (or 42841 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 55667300 is about 7461.0522046156. The cubic root of 55667300 is about 381.8270737639.

The spelling of 55667300 in words is "fifty-five million, six hundred sixty-seven thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1300 42821 85642 171284 214105 428210 556673 856420 1070525 1113346 2141050 2226692 2783365 4282100 5566730 11133460 13916825 27833650 55667300