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55114815 = 357717393
BaseRepresentation
bin1101001000111…
…1110000111111
310211201010022110
43102033300333
5103102133230
65245145103
71236316410
oct322176077
9124633273
1055114815
1129124638
121655b193
13b559522
147469807
154c8a4b0
hex348fc3f

55114815 has 32 divisors (see below), whose sum is σ = 102214656. Its totient is φ = 24837120.

The previous prime is 55114811. The next prime is 55114823. The reversal of 55114815 is 51841155.

It is not a de Polignac number, because 55114815 - 22 = 55114811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55114811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3759 + ... + 11151.

It is an arithmetic number, because the mean of its divisors is an integer number (3194208).

Almost surely, 255114815 is an apocalyptic number.

55114815 is a deficient number, since it is larger than the sum of its proper divisors (47099841).

55114815 is a wasteful number, since it uses less digits than its factorization.

55114815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7479.

The product of its digits is 4000, while the sum is 30.

The square root of 55114815 is about 7423.9352771963. The cubic root of 55114815 is about 380.5596900193.

The spelling of 55114815 in words is "fifty-five million, one hundred fourteen thousand, eight hundred fifteen".

Divisors: 1 3 5 7 15 21 35 71 105 213 355 497 1065 1491 2485 7393 7455 22179 36965 51751 110895 155253 258755 524903 776265 1574709 2624515 3674321 7873545 11022963 18371605 55114815