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55336045 = 523220921
BaseRepresentation
bin1101001100010…
…1110001101101
310212010100210011
43103011301231
5103131223140
65254013221
71241230402
oct323056155
9125110704
1055336045
1129265876
1216647211
13b60612b
1474c62a9
154cd0cea
hex34c5c6d

55336045 has 12 divisors (see below), whose sum is σ = 69419196. Its totient is φ = 42342080.

The previous prime is 55336033. The next prime is 55336049. The reversal of 55336045 is 54063355.

It can be written as a sum of positive squares in 2 ways, for example, as 29964676 + 25371369 = 5474^2 + 5037^2 .

It is not a de Polignac number, because 55336045 - 217 = 55204973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55335998 and 55336016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55336049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7816 + ... + 13105.

It is an arithmetic number, because the mean of its divisors is an integer number (5784933).

Almost surely, 255336045 is an apocalyptic number.

It is an amenable number.

55336045 is a deficient number, since it is larger than the sum of its proper divisors (14083151).

55336045 is a wasteful number, since it uses less digits than its factorization.

55336045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20972 (or 20949 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 55336045 is about 7438.8201349408. The cubic root of 55336045 is about 381.0681971139.

The spelling of 55336045 in words is "fifty-five million, three hundred thirty-six thousand, forty-five".

Divisors: 1 5 23 115 529 2645 20921 104605 481183 2405915 11067209 55336045