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312241412 = 22711151479
BaseRepresentation
bin10010100111000…
…110110100000100
3210202112111200202
4102213012310010
51114413211122
650552230032
710511002550
oct2247066404
9722474622
10312241412
1115028565a
128869b318
134c8c5942
142d67c860
151c62ae92
hex129c6d04

312241412 has 12 divisors (see below), whose sum is σ = 624482880. Its totient is φ = 133817736.

The previous prime is 312241343. The next prime is 312241427. The reversal of 312241412 is 214142213.

312241412 is an admirable 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, 5575712 + ... + 5575767.

It is an arithmetic number, because the mean of its divisors is an integer number (52040240).

Almost surely, 2312241412 is an apocalyptic number.

It is an amenable number.

312241412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312241412 is a wasteful number, since it uses less digits than its factorization.

312241412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11151490 (or 11151488 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 312241412 is about 17670.3540428595. The cubic root of 312241412 is about 678.4171749436.

Adding to 312241412 its reverse (214142213), we get a palindrome (526383625).

The spelling of 312241412 in words is "three hundred twelve million, two hundred forty-one thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 11151479 22302958 44605916 78060353 156120706 312241412