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31232630253 = 311946443341
BaseRepresentation
bin11101000101100111…
…000001110111101101
32222121122201000012110
4131011213001313231
51002431023132003
622203103354233
72153654656026
oct350547016755
988548630173
1031232630253
1112278007420
1260778b2979
132c39872806
14172402dc4d
15c2be5ca03
hex7459c1ded

31232630253 has 8 divisors (see below), whose sum is σ = 45429280416. Its totient is φ = 18928866800.

The previous prime is 31232630251. The next prime is 31232630267. The reversal of 31232630253 is 35203623213.

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 31232630253 - 21 = 31232630251 is a prime.

It is a super-2 number, since 2×312326302532 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31232630253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232630251) 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, 473221638 + ... + 473221703.

It is an arithmetic number, because the mean of its divisors is an integer number (5678660052).

Almost surely, 231232630253 is an apocalyptic number.

31232630253 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31232630253 is a deficient number, since it is larger than the sum of its proper divisors (14196650163).

31232630253 is a wasteful number, since it uses less digits than its factorization.

31232630253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946443355.

The product of its (nonzero) digits is 19440, while the sum is 30.

The spelling of 31232630253 in words is "thirty-one billion, two hundred thirty-two million, six hundred thirty thousand, two hundred fifty-three".

Divisors: 1 3 11 33 946443341 2839330023 10410876751 31232630253