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55113737 = 719414389
BaseRepresentation
bin1101001000111…
…1100000001001
310211201001211112
43102033200021
5103102114422
65245140105
71236313310
oct322174011
9124631745
1055113737
1129123848
121655a635
13b558ba3
147469277
154c89ee2
hex348f809

55113737 has 8 divisors (see below), whose sum is σ = 66302400. Its totient is φ = 44753904.

The previous prime is 55113719. The next prime is 55113749. The reversal of 55113737 is 73731155.

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 55113737 - 212 = 55109641 is a prime.

It is a super-2 number, since 2×551137372 = 6075048012210338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55118737) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 207062 + ... + 207327.

It is an arithmetic number, because the mean of its divisors is an integer number (8287800).

Almost surely, 255113737 is an apocalyptic number.

It is an amenable number.

55113737 is a deficient number, since it is larger than the sum of its proper divisors (11188663).

55113737 is a wasteful number, since it uses less digits than its factorization.

55113737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414415.

The product of its digits is 11025, while the sum is 32.

The square root of 55113737 is about 7423.8626738377. The cubic root of 55113737 is about 380.5572088593.

The spelling of 55113737 in words is "fifty-five million, one hundred thirteen thousand, seven hundred thirty-seven".

Divisors: 1 7 19 133 414389 2900723 7873391 55113737