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31101001332 = 2232591750111
BaseRepresentation
bin11100111101110000…
…111001111001110100
32222021111000120021020
4130331300321321310
51002143324020312
622142042221140
72150466102162
oct347560717164
988244016236
1031101001332
111220a782695
12603b7b47b0
132c1850678b
141710768232
15c2060b78c
hex73dc39e74

31101001332 has 12 divisors (see below), whose sum is σ = 72569003136. Its totient is φ = 10367000440.

The previous prime is 31101001331. The next prime is 31101001363. The reversal of 31101001332 is 23310010113.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101001331) 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, 1295875044 + ... + 1295875067.

It is an arithmetic number, because the mean of its divisors is an integer number (6047416928).

Almost surely, 231101001332 is an apocalyptic number.

It is an amenable number.

31101001332 is an abundant number, since it is smaller than the sum of its proper divisors (41468001804).

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

31101001332 is a wasteful number, since it uses less digits than its factorization.

31101001332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591750118 (or 2591750116 counting only the distinct ones).

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

Adding to 31101001332 its reverse (23310010113), we get a palindrome (54411011445).

The spelling of 31101001332 in words is "thirty-one billion, one hundred one million, one thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 2591750111 5183500222 7775250333 10367000444 15550500666 31101001332