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312404244 = 22326033687
BaseRepresentation
bin10010100111101…
…110100100010100
3210202211210001120
4102213232210110
51114433413434
650555523540
710512251355
oct2247564424
9722753046
10312404244
11150386a29
12887595b0
134c951aa9
142d6c1d2c
151c65e349
hex129ee914

312404244 has 12 divisors (see below), whose sum is σ = 728943264. Its totient is φ = 104134744.

The previous prime is 312404231. The next prime is 312404273. The reversal of 312404244 is 442404213.

It is a happy number.

312404244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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, 13016832 + ... + 13016855.

It is an arithmetic number, because the mean of its divisors is an integer number (60745272).

Almost surely, 2312404244 is an apocalyptic number.

It is an amenable number.

312404244 is an abundant number, since it is smaller than the sum of its proper divisors (416539020).

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

312404244 is a wasteful number, since it uses less digits than its factorization.

312404244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26033694 (or 26033692 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 312404244 is about 17674.9609334787. The cubic root of 312404244 is about 678.5350845951.

Adding to 312404244 its reverse (442404213), we get a palindrome (754808457).

The spelling of 312404244 in words is "three hundred twelve million, four hundred four thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 26033687 52067374 78101061 104134748 156202122 312404244