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31371475424 = 25980358607
BaseRepresentation
bin11101001101111000…
…101011100111100000
32222222022222001222012
4131031320223213200
51003222044203144
622224543332052
72160262066322
oct351570534740
988868861865
1031371475424
111233941a8a3
1260b62b1028
132c5c567313
141738653612
15c39236e9e
hex74de2b9e0

31371475424 has 12 divisors (see below), whose sum is σ = 61762592304. Its totient is φ = 15685737696.

The previous prime is 31371475403. The next prime is 31371475427. The reversal of 31371475424 is 42457417313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31371475427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490179272 + ... + 490179335.

It is an arithmetic number, because the mean of its divisors is an integer number (5146882692).

Almost surely, 231371475424 is an apocalyptic number.

It is an amenable number.

31371475424 is a deficient number, since it is larger than the sum of its proper divisors (30391116880).

31371475424 is an equidigital number, since it uses as much as digits as its factorization.

31371475424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980358617 (or 980358609 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The spelling of 31371475424 in words is "thirty-one billion, three hundred seventy-one million, four hundred seventy-five thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 32 980358607 1960717214 3921434428 7842868856 15685737712 31371475424