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312234112 = 276139989
BaseRepresentation
bin10010100111000…
…101000010000000
3210202112010200101
4102213011002000
51114412442422
650552132144
710510642351
oct2247050200
9722463611
10312234112
11150280123
1288697054
134c8c2518
142d679d28
151c628c27
hex129c5080

312234112 has 32 divisors (see below), whose sum is σ = 632241900. Its totient is φ = 153553920.

The previous prime is 312234103. The next prime is 312234217. The reversal of 312234112 is 211432213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 242611776 + 69622336 = 15576^2 + 8344^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 312234112.

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, 12187 + ... + 27802.

Almost surely, 2312234112 is an apocalyptic number.

312234112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

312234112 is an abundant number, since it is smaller than the sum of its proper divisors (320007788).

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

312234112 is an equidigital number, since it uses as much as digits as its factorization.

312234112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40064 (or 40052 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 312234112 is about 17670.1474809918. The cubic root of 312234112 is about 678.4118879191.

Adding to 312234112 its reverse (211432213), we get a palindrome (523666325).

The spelling of 312234112 in words is "three hundred twelve million, two hundred thirty-four thousand, one hundred twelve".

Divisors: 1 2 4 8 16 32 61 64 122 128 244 488 976 1952 3904 7808 39989 79978 159956 319912 639824 1279648 2439329 2559296 4878658 5118592 9757316 19514632 39029264 78058528 156117056 312234112