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31014400124 = 2234922216619
BaseRepresentation
bin11100111000100110…
…100011000001111100
32222001110001202202002
4130320212203001330
51002004141300444
622125310121432
72145365023421
oct347046430174
988043052662
1031014400124
1112175902944
1260167b0278
132c035a4866
141703063d48
15c17c01d4e
hex7389a307c

31014400124 has 12 divisors (see below), whose sum is σ = 54430719000. Its totient is φ = 15462766128.

The previous prime is 31014400121. The next prime is 31014400139. The reversal of 31014400124 is 42100441013.

It is a junction number, because it is equal to n+sod(n) for n = 31014400096 and 31014400105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31014400121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11106914 + ... + 11109705.

It is an arithmetic number, because the mean of its divisors is an integer number (4535893250).

Almost surely, 231014400124 is an apocalyptic number.

It is an amenable number.

31014400124 is a deficient number, since it is larger than the sum of its proper divisors (23416318876).

31014400124 is a wasteful number, since it uses less digits than its factorization.

31014400124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22216972 (or 22216970 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 31014400124 its reverse (42100441013), we get a palindrome (73114841137).

The spelling of 31014400124 in words is "thirty-one billion, fourteen million, four hundred thousand, one hundred twenty-four".

Divisors: 1 2 4 349 698 1396 22216619 44433238 88866476 7753600031 15507200062 31014400124