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307139334 = 23283180883
BaseRepresentation
bin10010010011101…
…001001100000110
3210101221021221220
4102103221030012
51112111424314
650251021210
710416432645
oct2223511406
9711837856
10307139334
11148410367
1286a3a806
134b82a568
142cb1135c
151be6e3a9
hex124e9306

307139334 has 16 divisors (see below), whose sum is σ = 616452672. Its totient is φ = 102017448.

The previous prime is 307139321. The next prime is 307139347. The reversal of 307139334 is 433931703.

It is an interprime number because it is at equal distance from previous prime (307139321) and next prime (307139347).

It is a junction number, because it is equal to n+sod(n) for n = 307139295 and 307139304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88744 + ... + 92139.

It is an arithmetic number, because the mean of its divisors is an integer number (38528292).

Almost surely, 2307139334 is an apocalyptic number.

307139334 is an abundant number, since it is smaller than the sum of its proper divisors (309313338).

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

307139334 is a wasteful number, since it uses less digits than its factorization.

307139334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181171.

The product of its (nonzero) digits is 20412, while the sum is 33.

The square root of 307139334 is about 17525.3911225970. The cubic root of 307139334 is about 674.7017129231.

The spelling of 307139334 in words is "three hundred seven million, one hundred thirty-nine thousand, three hundred thirty-four".

Divisors: 1 2 3 6 283 566 849 1698 180883 361766 542649 1085298 51189889 102379778 153569667 307139334