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312415044 = 22326034587
BaseRepresentation
bin10010100111110…
…001001101000100
3210202212022212120
4102213301031010
51114434240134
651000045540
710512325014
oct2247611504
9722768776
10312415044
11150394057
12887638b0
134c956996
142d6c5c44
151c662649
hex129f1344

312415044 has 12 divisors (see below), whose sum is σ = 728968464. Its totient is φ = 104138344.

The previous prime is 312415031. The next prime is 312415073. The reversal of 312415044 is 440514213.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13017282 + ... + 13017305.

It is an arithmetic number, because the mean of its divisors is an integer number (60747372).

Almost surely, 2312415044 is an apocalyptic number.

It is an amenable number.

312415044 is an abundant number, since it is smaller than the sum of its proper divisors (416553420).

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

312415044 is a wasteful number, since it uses less digits than its factorization.

312415044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26034594 (or 26034592 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 312415044 is about 17675.2664477795. The cubic root of 312415044 is about 678.5429036251.

Adding to 312415044 its reverse (440514213), we get a palindrome (752929257).

The spelling of 312415044 in words is "three hundred twelve million, four hundred fifteen thousand, forty-four".

Divisors: 1 2 3 4 6 12 26034587 52069174 78103761 104138348 156207522 312415044