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52105642331 = 537043139589
BaseRepresentation
bin110000100001101111…
…010000000101011011
311222111022221212212212
4300201233100011123
51323203021023311
635534220425335
73523140436451
oct604157200533
9158438855785
1052105642331
1120109305326
12a1220a824b
134bb5084b32
1427442489d1
15154e673c8b
hexc21bd015b

52105642331 has 8 divisors (see below), whose sum is σ = 53096685840. Its totient is φ = 51114892192.

The previous prime is 52105642321. The next prime is 52105642343. The reversal of 52105642331 is 13324650125.

It is a happy number.

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 52105642331 - 210 = 52105641307 is a prime.

It is a super-2 number, since 2×521056423312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52105642321) 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, 303485 + ... + 443073.

It is an arithmetic number, because the mean of its divisors is an integer number (6637085730).

Almost surely, 252105642331 is an apocalyptic number.

52105642331 is a deficient number, since it is larger than the sum of its proper divisors (991043509).

52105642331 is a wasteful number, since it uses less digits than its factorization.

52105642331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146685.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 52105642331 in words is "fifty-two billion, one hundred five million, six hundred forty-two thousand, three hundred thirty-one".

Divisors: 1 53 7043 139589 373279 7398217 983125327 52105642331