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55013636 = 2241335449
BaseRepresentation
bin1101000111011…
…1000100000100
310211111222112002
43101313010010
5103040414021
65243044432
71235415416
oct321670404
9124458462
1055013636
1129065617
1216510718
13b522462
1474409b6
154c6a50b
hex3477104

55013636 has 12 divisors (see below), whose sum is σ = 98622300. Its totient is φ = 26835840.

The previous prime is 55013617. The next prime is 55013653. The reversal of 55013636 is 63631055.

It can be written as a sum of positive squares in 2 ways, for example, as 8008900 + 47004736 = 2830^2 + 6856^2 .

It is a junction number, because it is equal to n+sod(n) for n = 55013599 and 55013608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167561 + ... + 167888.

It is an arithmetic number, because the mean of its divisors is an integer number (8218525).

Almost surely, 255013636 is an apocalyptic number.

It is an amenable number.

55013636 is a deficient number, since it is larger than the sum of its proper divisors (43608664).

55013636 is a wasteful number, since it uses less digits than its factorization.

55013636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335494 (or 335492 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 55013636 is about 7417.1177690529. The cubic root of 55013636 is about 380.3266720002.

The spelling of 55013636 in words is "fifty-five million, thirteen thousand, six hundred thirty-six".

Divisors: 1 2 4 41 82 164 335449 670898 1341796 13753409 27506818 55013636