Search a number
-
+
307964780 = 22522076977
BaseRepresentation
bin10010010110110…
…010101101101100
3210110111020020222
4102112302231230
51112314333110
650320430512
710426441334
oct2226625554
9713436228
10307964780
11148924552
1287178438
134ba591a6
142cc880c4
151c083c55
hex125b2b6c

307964780 has 24 divisors (see below), whose sum is σ = 647111808. Its totient is φ = 123112448.

The previous prime is 307964759. The next prime is 307964827. The reversal of 307964780 is 87469703.

307964780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 40652 + ... + 47628.

It is an arithmetic number, because the mean of its divisors is an integer number (26962992).

Almost surely, 2307964780 is an apocalyptic number.

It is an amenable number.

307964780 is an abundant number, since it is smaller than the sum of its proper divisors (339147028).

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

307964780 is a wasteful number, since it uses less digits than its factorization.

307964780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9193 (or 9191 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 307964780 is about 17548.9253232214. The cubic root of 307964780 is about 675.3055991623.

The spelling of 307964780 in words is "three hundred seven million, nine hundred sixty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2207 4414 6977 8828 11035 13954 22070 27908 34885 44140 69770 139540 15398239 30796478 61592956 76991195 153982390 307964780