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31400411444 = 2257113747991
BaseRepresentation
bin11101001111100111…
…000100000100110100
310000001100102011201122
4131033213010010310
51003302001131234
622231455443112
72161063044023
oct351747040464
9100040364648
1031400411444
1112353793966
126103b26498
132c65558c1c
14173c4268ba
15c3ba5092e
hex74f9c4134

31400411444 has 12 divisors (see below), whose sum is σ = 55046959968. Its totient is φ = 15672708600.

The previous prime is 31400411437. The next prime is 31400411489. The reversal of 31400411444 is 44411400413.

It is a congruent number.

It is an unprimeable number.

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, 6871712 + ... + 6876279.

It is an arithmetic number, because the mean of its divisors is an integer number (4587246664).

Almost surely, 231400411444 is an apocalyptic number.

It is an amenable number.

31400411444 is a deficient number, since it is larger than the sum of its proper divisors (23646548524).

31400411444 is a wasteful number, since it uses less digits than its factorization.

31400411444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13748566 (or 13748564 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 31400411444 its reverse (44411400413), we get a palindrome (75811811857).

The spelling of 31400411444 in words is "thirty-one billion, four hundred million, four hundred eleven thousand, four hundred forty-four".

Divisors: 1 2 4 571 1142 2284 13747991 27495982 54991964 7850102861 15700205722 31400411444