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52444251431 = 1113366743017
BaseRepresentation
bin110000110101111010…
…111100010100100111
312000100221010000020122
4300311322330110213
51324401212021211
640031554152155
73534421532135
oct606572742447
9160327100218
1052444251431
112027245a360
12a1b758265b
134c3a280350
1427771cc755
15156e25c6db
hexc35ebc527

52444251431 has 8 divisors (see below), whose sum is σ = 61612827024. Its totient is φ = 44009161920.

The previous prime is 52444251413. The next prime is 52444251449. The reversal of 52444251431 is 13415244425.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (52444251413) and next prime (52444251449).

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 52444251431 - 210 = 52444250407 is a prime.

It is a super-2 number, since 2×524442514312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52444251391 and 52444251400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52444251451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183371366 + ... + 183371651.

It is an arithmetic number, because the mean of its divisors is an integer number (7701603378).

Almost surely, 252444251431 is an apocalyptic number.

52444251431 is a deficient number, since it is larger than the sum of its proper divisors (9168575593).

52444251431 is a wasteful number, since it uses less digits than its factorization.

52444251431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366743041.

The product of its digits is 76800, while the sum is 35.

Adding to 52444251431 its reverse (13415244425), we get a palindrome (65859495856).

The spelling of 52444251431 in words is "fifty-two billion, four hundred forty-four million, two hundred fifty-one thousand, four hundred thirty-one".

Divisors: 1 11 13 143 366743017 4034173187 4767659221 52444251431