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312111011110 = 2531211101111
BaseRepresentation
bin1001000101010110100…
…01000001010100100110
31002211121112221010201011
410202223101001110212
520103200404323420
6355214250052434
731356254551543
oct4425321012446
91084545833634
10312111011110
11110402590198
12505a541a11a
132357cc90a82
141116b7b9bca
1581baa5b95a
hex48ab441526

312111011110 has 8 divisors (see below), whose sum is σ = 561799820016. Its totient is φ = 124844404440.

The previous prime is 312111011089. The next prime is 312111011183. The reversal of 312111011110 is 11110111213.

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

It is a super-2 number, since 2×3121110111102 (a number of 24 digits) contains 22 as substring.

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, 15605550546 + ... + 15605550565.

It is an arithmetic number, because the mean of its divisors is an integer number (70224977502).

Almost surely, 2312111011110 is an apocalyptic number.

312111011110 is a deficient number, since it is larger than the sum of its proper divisors (249688808906).

312111011110 is a wasteful number, since it uses less digits than its factorization.

312111011110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31211101118.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 312111011110 its reverse (11110111213), we get a palindrome (323221122323).

The spelling of 312111011110 in words is "three hundred twelve billion, one hundred eleven million, eleven thousand, one hundred ten".

Divisors: 1 2 5 10 31211101111 62422202222 156055505555 312111011110