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55052680 = 2351376317
BaseRepresentation
bin1101001000000…
…0100110001000
310211120222002011
43102000212020
5103043141210
65243545304
71235640304
oct322004610
9124528064
1055052680
1129091991
121652b234
13b537167
147450d04
154c76d8a
hex3480988

55052680 has 16 divisors (see below), whose sum is σ = 123868620. Its totient is φ = 22021056.

The previous prime is 55052659. The next prime is 55052689. The reversal of 55052680 is 8625055.

It can be written as a sum of positive squares in 2 ways, for example, as 54434884 + 617796 = 7378^2 + 786^2 .

It is not an unprimeable number, because it can be changed into a prime (55052689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688119 + ... + 688198.

Almost surely, 255052680 is an apocalyptic number.

It is an amenable number.

55052680 is an abundant number, since it is smaller than the sum of its proper divisors (68815940).

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

55052680 is a wasteful number, since it uses less digits than its factorization.

55052680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376328 (or 1376324 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 55052680 is about 7419.7493219111. The cubic root of 55052680 is about 380.4166252317.

The spelling of 55052680 in words is "fifty-five million, fifty-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1376317 2752634 5505268 6881585 11010536 13763170 27526340 55052680