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31404036886 = 2103152446781
BaseRepresentation
bin11101001111110100…
…111001001100010110
310000001121020100220021
4131033310321030112
51003303413140021
622232105255354
72161135623565
oct351764711426
9100047210807
1031404036886
111235583a7a2
12610519455a
132c66228161
14173cacbbdc
15c3c019c41
hex74fd39316

31404036886 has 8 divisors (see below), whose sum is σ = 47563395984. Its totient is φ = 15549571560.

The previous prime is 31404036869. The next prime is 31404036949. The reversal of 31404036886 is 68863040413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76223185 + ... + 76223596.

It is an arithmetic number, because the mean of its divisors is an integer number (5945424498).

Almost surely, 231404036886 is an apocalyptic number.

31404036886 is a deficient number, since it is larger than the sum of its proper divisors (16159359098).

31404036886 is a wasteful number, since it uses less digits than its factorization.

31404036886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152446886.

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 31404036886 in words is "thirty-one billion, four hundred four million, thirty-six thousand, eight hundred eighty-six".

Divisors: 1 2 103 206 152446781 304893562 15702018443 31404036886