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52311344647 = 2361226716447
BaseRepresentation
bin110000101101111111…
…111100011000000111
312000000200000122102011
4300231333330120013
51324113201012042
640010445355051
73531216043612
oct605577743007
9160020018364
1052311344647
1120204432541
12a17ab68a87
134c18887793
1427636b3179
151562757a17
hexc2dffc607

52311344647 has 16 divisors (see below), whose sum is σ = 55508447232. Its totient is φ = 49191959520.

The previous prime is 52311344629. The next prime is 52311344653. The reversal of 52311344647 is 74644311325.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52311344647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52311344627) 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, 3172378 + ... + 3188824.

It is an arithmetic number, because the mean of its divisors is an integer number (3469277952).

Almost surely, 252311344647 is an apocalyptic number.

52311344647 is a deficient number, since it is larger than the sum of its proper divisors (3197102585).

52311344647 is a wasteful number, since it uses less digits than its factorization.

52311344647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18798.

The product of its digits is 241920, while the sum is 40.

The spelling of 52311344647 in words is "fifty-two billion, three hundred eleven million, three hundred forty-four thousand, six hundred forty-seven".

Divisors: 1 23 61 1403 2267 16447 52141 138287 378281 1003267 3180601 23075141 37285349 857563027 2274406289 52311344647