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307607742 = 232131314563
BaseRepresentation
bin10010010101011…
…011100010111110
3210102211002111100
4102111123202332
51112221421432
650305033530
710423423401
oct2225334276
9712732440
10307607742
11148700282
12870258a6
134b962820
142cbd3d38
151c01307c
hex1255b8be

307607742 has 24 divisors (see below), whose sum is σ = 717751944. Its totient is φ = 94648464.

The previous prime is 307607723. The next prime is 307607743. The reversal of 307607742 is 247706703.

307607742 is a `hidden beast` number, since 3 + 0 + 7 + 607 + 7 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 307607697 and 307607706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307607743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657048 + ... + 657515.

It is an arithmetic number, because the mean of its divisors is an integer number (29906331).

Almost surely, 2307607742 is an apocalyptic number.

307607742 is an abundant number, since it is smaller than the sum of its proper divisors (410144202).

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

307607742 is a wasteful number, since it uses less digits than its factorization.

307607742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314584 (or 1314581 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 307607742 is about 17538.7497273894. The cubic root of 307607742 is about 675.0445271038.

The spelling of 307607742 in words is "three hundred seven million, six hundred seven thousand, seven hundred forty-two".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 1314563 2629126 3943689 7887378 11831067 17089319 23662134 34178638 51267957 102535914 153803871 307607742