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55081351 = 1318892243
BaseRepresentation
bin1101001000011…
…1100110000111
310211122102102001
43102013212013
5103100100401
65244330131
71236120013
oct322074607
9124572361
1055081351
1129101486
1216543947
13b547220
14745b543
154c80601
hex3487987

55081351 has 8 divisors (see below), whose sum is σ = 59376240. Its totient is φ = 50794752.

The previous prime is 55081349. The next prime is 55081357. The reversal of 55081351 is 15318055.

55081351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55081351 - 21 = 55081349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55081357) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23436 + ... + 25678.

It is an arithmetic number, because the mean of its divisors is an integer number (7422030).

Almost surely, 255081351 is an apocalyptic number.

55081351 is a deficient number, since it is larger than the sum of its proper divisors (4294889).

55081351 is a wasteful number, since it uses less digits than its factorization.

55081351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 55081351 is about 7421.6811437841. The cubic root of 55081351 is about 380.4826530932.

It can be divided in two parts, 5508 and 1351, that added together give a cube (6859 = 193).

The spelling of 55081351 in words is "fifty-five million, eighty-one thousand, three hundred fifty-one".

Divisors: 1 13 1889 2243 24557 29159 4237027 55081351