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31311342110 = 253131134211
BaseRepresentation
bin11101001010010011…
…010010101000011110
32222211010210222120102
4131022103102220132
51003111200421420
622214554421102
72155632005456
oct351223225036
988733728512
1031311342110
1112308488844
12609a131792
132c4cc71789
14173067cd66
15c33d09a75
hex74a4d2a1e

31311342110 has 8 divisors (see below), whose sum is σ = 56360415816. Its totient is φ = 12524536840.

The previous prime is 31311342109. The next prime is 31311342113. The reversal of 31311342110 is 1124311313.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311342113) 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, 1565567096 + ... + 1565567115.

It is an arithmetic number, because the mean of its divisors is an integer number (7045051977).

Almost surely, 231311342110 is an apocalyptic number.

31311342110 is a deficient number, since it is larger than the sum of its proper divisors (25049073706).

31311342110 is a wasteful number, since it uses less digits than its factorization.

31311342110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131134218.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31311342110 its reverse (1124311313), we get a palindrome (32435653423).

The spelling of 31311342110 in words is "thirty-one billion, three hundred eleven million, three hundred forty-two thousand, one hundred ten".

Divisors: 1 2 5 10 3131134211 6262268422 15655671055 31311342110