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309468107 = 1323805239
BaseRepresentation
bin10010011100100…
…001101111001011
3210120022121102202
4102130201233023
51113210434412
650412550415
710445302244
oct2234415713
9716277382
10309468107
11149760a73
128778240b
134c164530
142d159ccb
151c27e3c2
hex12721bcb

309468107 has 4 divisors (see below), whose sum is σ = 333273360. Its totient is φ = 285662856.

The previous prime is 309468023. The next prime is 309468127. The reversal of 309468107 is 701864903.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 309468107 - 210 = 309467083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309468127) 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, 11902607 + ... + 11902632.

It is an arithmetic number, because the mean of its divisors is an integer number (83318340).

Almost surely, 2309468107 is an apocalyptic number.

309468107 is a deficient number, since it is larger than the sum of its proper divisors (23805253).

309468107 is a wasteful number, since it uses less digits than its factorization.

309468107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23805252.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 309468107 is about 17591.7056307795. The cubic root of 309468107 is about 676.4026485297.

The spelling of 309468107 in words is "three hundred nine million, four hundred sixty-eight thousand, one hundred seven".

Divisors: 1 13 23805239 309468107