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312116104 = 23215318121
BaseRepresentation
bin10010100110101…
…000001110001000
3210202022010210201
4102212220032020
51114400203404
650545421544
710506641326
oct2246501610
9722263721
10312116104
111501aa4a3
128863a8b4
134c8808b1
142d648d16
151c603ca4
hex129a8388

312116104 has 16 divisors (see below), whose sum is σ = 585521820. Its totient is φ = 155976960.

The previous prime is 312116087. The next prime is 312116117. The reversal of 312116104 is 401611213.

It can be written as a sum of positive squares in 2 ways, for example, as 278823204 + 33292900 = 16698^2 + 5770^2 .

It is a super-2 number, since 2×3121161042 = 194832924752277632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8164 + ... + 26284.

Almost surely, 2312116104 is an apocalyptic number.

It is an amenable number.

312116104 is a deficient number, since it is larger than the sum of its proper divisors (273405716).

312116104 is a wasteful number, since it uses less digits than its factorization.

312116104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20280 (or 20276 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 312116104 is about 17666.8079742776. The cubic root of 312116104 is about 678.3264091976.

Adding to 312116104 its reverse (401611213), we get a palindrome (713727317).

The spelling of 312116104 in words is "three hundred twelve million, one hundred sixteen thousand, one hundred four".

Divisors: 1 2 4 8 2153 4306 8612 17224 18121 36242 72484 144968 39014513 78029026 156058052 312116104