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32131113 = 372218579
BaseRepresentation
bin111101010010…
…0100000101001
32020110102121020
41322210200221
531211143423
63104403053
7540052500
oct172444051
966412536
1032131113
1117156643
12a916489
13686ccc1
1443a5837
152c4a4e3
hex1ea4829

32131113 has 12 divisors (see below), whose sum is σ = 49836240. Its totient is φ = 18360552.

The previous prime is 32131111. The next prime is 32131181. The reversal of 32131113 is 31113123.

It is not a de Polignac number, because 32131113 - 21 = 32131111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32131092 and 32131101.

It is not an unprimeable number, because it can be changed into a prime (32131111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109143 + ... + 109436.

It is an arithmetic number, because the mean of its divisors is an integer number (4153020).

Almost surely, 232131113 is an apocalyptic number.

It is an amenable number.

32131113 is a deficient number, since it is larger than the sum of its proper divisors (17705127).

32131113 is a wasteful number, since it uses less digits than its factorization.

32131113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218596 (or 218589 counting only the distinct ones).

The product of its digits is 54, while the sum is 15.

The square root of 32131113 is about 5668.4312644682. The cubic root of 32131113 is about 317.9132214461.

Adding to 32131113 its reverse (31113123), we get a palindrome (63244236).

The spelling of 32131113 in words is "thirty-two million, one hundred thirty-one thousand, one hundred thirteen".

Divisors: 1 3 7 21 49 147 218579 655737 1530053 4590159 10710371 32131113