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31232103113 = 233287946559
BaseRepresentation
bin11101000101100101…
…000001001011001001
32222121121201020002202
4131011211001023021
51002430404244423
622203044205545
72153650332131
oct350545011311
988547636082
1031232103113
1112277787372
1260776998b5
132c397198b3
141723d33ac1
15c2bda6728
hex7459412c9

31232103113 has 8 divisors (see below), whose sum is σ = 31377715200. Its totient is φ = 31086590368.

The previous prime is 31232103103. The next prime is 31232103137. The reversal of 31232103113 is 31130123213.

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 31232103113 - 210 = 31232102089 is a prime.

It is a super-2 number, since 2×312321031132 (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 (31232103103) 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, 647528 + ... + 694086.

It is an arithmetic number, because the mean of its divisors is an integer number (3922214400).

Almost surely, 231232103113 is an apocalyptic number.

It is an amenable number.

31232103113 is a deficient number, since it is larger than the sum of its proper divisors (145612087).

31232103113 is a wasteful number, since it uses less digits than its factorization.

31232103113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49671.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31232103113 its reverse (31130123213), we get a palindrome (62362226326).

The spelling of 31232103113 in words is "thirty-one billion, two hundred thirty-two million, one hundred three thousand, one hundred thirteen".

Divisors: 1 233 2879 46559 670807 10848247 134043361 31232103113