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52155122142 = 238692520357
BaseRepresentation
bin110000100100101100…
…000000000111011110
311222121210001201102110
4300210230000013132
51323303202402032
635543145134450
73524311136454
oct604454000736
9158553051373
1052155122142
1120134230232
12a13678a426
134bc23ba526
14274aa489d4
151553b997cc
hexc24b001de

52155122142 has 8 divisors (see below), whose sum is σ = 104310244296. Its totient is φ = 17385040712.

The previous prime is 52155122141. The next prime is 52155122147. The reversal of 52155122142 is 24122155125.

It is a sphenic number, since it is the product of 3 distinct primes.

52155122142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52155122141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4346260173 + ... + 4346260184.

It is an arithmetic number, because the mean of its divisors is an integer number (13038780537).

Almost surely, 252155122142 is an apocalyptic number.

52155122142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52155122142 is a wasteful number, since it uses less digits than its factorization.

52155122142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8692520362.

The product of its digits is 8000, while the sum is 30.

Adding to 52155122142 its reverse (24122155125), we get a palindrome (76277277267).

The spelling of 52155122142 in words is "fifty-two billion, one hundred fifty-five million, one hundred twenty-two thousand, one hundred forty-two".

Divisors: 1 2 3 6 8692520357 17385040714 26077561071 52155122142