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55304739 = 327877853
BaseRepresentation
bin1101001011111…
…0001000100011
310212001202211200
43102332020203
5103124222424
65253212243
71241040210
oct322761043
9125052750
1055304739
11292442a6
1216631083
13b5c4ac9
1474b8b07
154cc68c9
hex34be223

55304739 has 12 divisors (see below), whose sum is σ = 91296816. Its totient is φ = 31602672.

The previous prime is 55304693. The next prime is 55304741. The reversal of 55304739 is 93740355.

55304739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55304739 - 215 = 55271971 is a prime.

It is a super-2 number, since 2×553047392 = 6117228311716242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55304749) 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 11 ways as a sum of consecutive naturals, for example, 438864 + ... + 438989.

It is an arithmetic number, because the mean of its divisors is an integer number (7608068).

Almost surely, 255304739 is an apocalyptic number.

55304739 is a deficient number, since it is larger than the sum of its proper divisors (35992077).

55304739 is a wasteful number, since it uses less digits than its factorization.

55304739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877866 (or 877863 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 55304739 is about 7436.7156056958. The cubic root of 55304739 is about 380.9963212905.

The spelling of 55304739 in words is "fifty-five million, three hundred four thousand, seven hundred thirty-nine".

Divisors: 1 3 7 9 21 63 877853 2633559 6144971 7900677 18434913 55304739