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54344021415 = 3517920239859
BaseRepresentation
bin110010100111001001…
…111111010110100111
312012021022212022201220
4302213021333112213
51342244032141130
640544300551423
73632460363135
oct624711772647
9165238768656
1054344021415
11210578686a2
12a647852573
135180a332b8
1428b7636755
151630e22410
hexca727f5a7

54344021415 has 16 divisors (see below), whose sum is σ = 87436195200. Its totient is φ = 28821557792.

The previous prime is 54344021411. The next prime is 54344021423. The reversal of 54344021415 is 51412044345.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 54344021415 - 22 = 54344021411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54344021411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10117245 + ... + 10122614.

It is an arithmetic number, because the mean of its divisors is an integer number (5464762200).

Almost surely, 254344021415 is an apocalyptic number.

54344021415 is a deficient number, since it is larger than the sum of its proper divisors (33092173785).

54344021415 is a wasteful number, since it uses less digits than its factorization.

54344021415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20240046.

The product of its (nonzero) digits is 38400, while the sum is 33.

The spelling of 54344021415 in words is "fifty-four billion, three hundred forty-four million, twenty-one thousand, four hundred fifteen".

Divisors: 1 3 5 15 179 537 895 2685 20239859 60719577 101199295 303597885 3622934761 10868804283 18114673805 54344021415