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52397280715 = 5136117376387
BaseRepresentation
bin110000110011000111…
…110000110111001011
312000020122201122112111
4300303013300313023
51324302200440330
640023155323151
73533311352233
oct606307606713
9160218648474
1052397280715
112024899858a
12a1a38b04b7
134c30615a20
142770c82cc3
15156a08032a
hexc331f0dcb

52397280715 has 32 divisors (see below), whose sum is σ = 69222194496. Its totient is φ = 37838568960.

The previous prime is 52397280703. The next prime is 52397280721. The reversal of 52397280715 is 51708279325.

It is not a de Polignac number, because 52397280715 - 219 = 52396756427 is a prime.

It is a super-2 number, since 2×523972807152 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 647752 + ... + 724138.

It is an arithmetic number, because the mean of its divisors is an integer number (2163193578).

Almost surely, 252397280715 is an apocalyptic number.

52397280715 is a deficient number, since it is larger than the sum of its proper divisors (16824913781).

52397280715 is a wasteful number, since it uses less digits than its factorization.

52397280715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76639.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 52397280715 in words is "fifty-two billion, three hundred ninety-seven million, two hundred eighty thousand, seven hundred fifteen".

Divisors: 1 5 13 61 65 173 305 793 865 2249 3965 10553 11245 52765 76387 137189 381935 685945 993031 4659607 4965155 13214951 23298035 60574891 66074755 171794363 302874455 806112011 858971815 4030560055 10479456143 52397280715