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52542151431 = 3711227455201
BaseRepresentation
bin110000111011110000…
…011001101100000111
312000121202022211210120
4300323300121230013
51330101242321211
640045412353023
73540020626650
oct607360315407
9160552284716
1052542151431
1120312747050
12a224315773
134c5463a043
1427861d4527
151577b49d06
hexc3bc19b07

52542151431 has 16 divisors (see below), whose sum is σ = 87342797568. Its totient is φ = 27294624000.

The previous prime is 52542151399. The next prime is 52542151463. The reversal of 52542151431 is 13415124525.

52542151431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52542151399) and next prime (52542151463).

It is not a de Polignac number, because 52542151431 - 25 = 52542151399 is a prime.

It is a super-2 number, since 2×525421514312 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 52542151392 and 52542151401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52542151031) 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, 113727370 + ... + 113727831.

It is an arithmetic number, because the mean of its divisors is an integer number (5458924848).

Almost surely, 252542151431 is an apocalyptic number.

52542151431 is a deficient number, since it is larger than the sum of its proper divisors (34800646137).

52542151431 is a wasteful number, since it uses less digits than its factorization.

52542151431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227455222.

The product of its digits is 24000, while the sum is 33.

Adding to 52542151431 its reverse (13415124525), we get a palindrome (65957275956).

The spelling of 52542151431 in words is "fifty-two billion, five hundred forty-two million, one hundred fifty-one thousand, four hundred thirty-one".

Divisors: 1 3 7 11 21 33 77 231 227455201 682365603 1592186407 2502007211 4776559221 7506021633 17514050477 52542151431