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312666093 = 32311120667
BaseRepresentation
bin10010101000101…
…110011111101101
3210210100002020200
4102220232133231
51120020303333
651005304113
710514421645
oct2250563755
9723302220
10312666093
11150545733
1288865039
134ca1402c
142d74d525
151c6b1c13
hex12a2e7ed

312666093 has 12 divisors (see below), whose sum is σ = 466197888. Its totient is φ = 201719880.

The previous prime is 312666073. The next prime is 312666103. The reversal of 312666093 is 390666213.

It is not a de Polignac number, because 312666093 - 25 = 312666061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312666073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560055 + ... + 560612.

It is an arithmetic number, because the mean of its divisors is an integer number (38849824).

Almost surely, 2312666093 is an apocalyptic number.

It is an amenable number.

312666093 is a deficient number, since it is larger than the sum of its proper divisors (153531795).

312666093 is a wasteful number, since it uses less digits than its factorization.

312666093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120704 (or 1120701 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 312666093 is about 17682.3667250739. The cubic root of 312666093 is about 678.7246083925.

The spelling of 312666093 in words is "three hundred twelve million, six hundred sixty-six thousand, ninety-three".

Divisors: 1 3 9 31 93 279 1120667 3362001 10086003 34740677 104222031 312666093