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55000456 = 237982151
BaseRepresentation
bin1101000111001…
…1110110001000
310211111022102221
43101303312020
5103040003311
65242503424
71235332120
oct321636610
9124438387
1055000456
1129056725
1216504b74
13b519464
147439c80
154c66671
hex3473d88

55000456 has 16 divisors (see below), whose sum is σ = 117858240. Its totient is φ = 23571600.

The previous prime is 55000403. The next prime is 55000469. The reversal of 55000456 is 65400055.

55000456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55000456.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 491020 + ... + 491131.

It is an arithmetic number, because the mean of its divisors is an integer number (7366140).

Almost surely, 255000456 is an apocalyptic number.

55000456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

55000456 is an abundant number, since it is smaller than the sum of its proper divisors (62857784).

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

55000456 is a wasteful number, since it uses less digits than its factorization.

55000456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982164 (or 982160 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55000456 is about 7416.2292305457. The cubic root of 55000456 is about 380.2962970710.

The spelling of 55000456 in words is "fifty-five million, four hundred fifty-six", and thus it is an aban number.

Divisors: 1 2 4 7 8 14 28 56 982151 1964302 3928604 6875057 7857208 13750114 27500228 55000456