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316926289 = 1916680331
BaseRepresentation
bin10010111000111…
…110100101010001
3211002100112010201
4102320332211101
51122113120124
651240455201
710565554231
oct2270764521
9732315121
10316926289
11152995459
128a17a501
1350876164
143013bcc1
151cc54144
hex12e3e951

316926289 has 4 divisors (see below), whose sum is σ = 333606640. Its totient is φ = 300245940.

The previous prime is 316926227. The next prime is 316926319. The reversal of 316926289 is 982629613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 316926289 - 27 = 316926161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316926209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8340147 + ... + 8340184.

It is an arithmetic number, because the mean of its divisors is an integer number (83401660).

Almost surely, 2316926289 is an apocalyptic number.

It is an amenable number.

316926289 is a deficient number, since it is larger than the sum of its proper divisors (16680351).

316926289 is a wasteful number, since it uses less digits than its factorization.

316926289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16680350.

The product of its digits is 279936, while the sum is 46.

The square root of 316926289 is about 17802.4236833078. The cubic root of 316926289 is about 681.7933408641.

The spelling of 316926289 in words is "three hundred sixteen million, nine hundred twenty-six thousand, two hundred eighty-nine".

Divisors: 1 19 16680331 316926289