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55951028 = 2271998251
BaseRepresentation
bin1101010101101…
…1111010110100
310220021121101022
43111123322310
5103310413103
65315120312
71246401350
oct325337264
9126247338
1055951028
1129645921
12168a3098
13b790023
147606460
154da3138
hex355beb4

55951028 has 12 divisors (see below), whose sum is σ = 111902112. Its totient is φ = 23979000.

The previous prime is 55951013. The next prime is 55951031. The reversal of 55951028 is 82015955.

55951028 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999098 + ... + 999153.

It is an arithmetic number, because the mean of its divisors is an integer number (9325176).

Almost surely, 255951028 is an apocalyptic number.

It is an amenable number.

55951028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55951028 is a wasteful number, since it uses less digits than its factorization.

55951028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998262 (or 1998260 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 35.

The square root of 55951028 is about 7480.0419784918. The cubic root of 55951028 is about 382.4746801415.

The spelling of 55951028 in words is "fifty-five million, nine hundred fifty-one thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 1998251 3996502 7993004 13987757 27975514 55951028