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55308351 = 3718114551
BaseRepresentation
bin1101001011111…
…1000000111111
310212001221210110
43102333000333
5103124331401
65253241103
71241053560
oct322770077
9125057713
1055308351
1129246a8a
1216633193
13b5c6647
1474ba167
154cc79d6
hex34bf03f

55308351 has 16 divisors (see below), whose sum is σ = 84750848. Its totient is φ = 31428000.

The previous prime is 55308349. The next prime is 55308359. The reversal of 55308351 is 15380355.

It is not a de Polignac number, because 55308351 - 21 = 55308349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55308359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3475 + ... + 11076.

It is an arithmetic number, because the mean of its divisors is an integer number (5296928).

Almost surely, 255308351 is an apocalyptic number.

55308351 is a deficient number, since it is larger than the sum of its proper divisors (29442497).

55308351 is a wasteful number, since it uses less digits than its factorization.

55308351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14742.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 55308351 is about 7436.9584508722. The cubic root of 55308351 is about 381.0046155089.

The spelling of 55308351 in words is "fifty-five million, three hundred eight thousand, three hundred fifty-one".

Divisors: 1 3 7 21 181 543 1267 3801 14551 43653 101857 305571 2633731 7901193 18436117 55308351