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55101260 = 2253188873
BaseRepresentation
bin1101001000110…
…0011101001100
310211200102201102
43102030131030
5103101220020
65245002232
71236232034
oct322143514
9124612642
1055101260
1129115435
1216553378
13b5532c6
1474648c4
154c86475
hex348c74c

55101260 has 24 divisors (see below), whose sum is σ = 119446656. Its totient is φ = 21329280.

The previous prime is 55101227. The next prime is 55101289. The reversal of 55101260 is 6210155.

It is a super-2 number, since 2×551012602 = 6072297707175200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43817 + ... + 45056.

It is an arithmetic number, because the mean of its divisors is an integer number (4976944).

Almost surely, 255101260 is an apocalyptic number.

It is an amenable number.

55101260 is an abundant number, since it is smaller than the sum of its proper divisors (64345396).

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

55101260 is a wasteful number, since it uses less digits than its factorization.

55101260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88913 (or 88911 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 55101260 is about 7423.0222955343. The cubic root of 55101260 is about 380.5284890343.

The spelling of 55101260 in words is "fifty-five million, one hundred one thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 88873 177746 355492 444365 888730 1777460 2755063 5510126 11020252 13775315 27550630 55101260