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31464230911 = 128924409799
BaseRepresentation
bin11101010011011010…
…100000111111111111
310000012210111112120121
4131103122200333333
51003414320342121
622242055355411
72162466356431
oct352332407777
9100183445517
1031464230911
1112386813423
126121382b67
132c75842519
141746aba651
15c4245a141
hex7536a0fff

31464230911 has 4 divisors (see below), whose sum is σ = 31488642000. Its totient is φ = 31439819824.

The previous prime is 31464230909. The next prime is 31464230923. The reversal of 31464230911 is 11903246413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31464230911 - 21 = 31464230909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31464230971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12203611 + ... + 12206188.

It is an arithmetic number, because the mean of its divisors is an integer number (7872160500).

Almost surely, 231464230911 is an apocalyptic number.

31464230911 is a deficient number, since it is larger than the sum of its proper divisors (24411089).

31464230911 is a wasteful number, since it uses less digits than its factorization.

31464230911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24411088.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 31464230911 in words is "thirty-one billion, four hundred sixty-four million, two hundred thirty thousand, nine hundred eleven".

Divisors: 1 1289 24409799 31464230911