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306965990680 = 2357674149767
BaseRepresentation
bin1000111011110001001…
…10010100110100011000
31002100022222200000111221
410131320212110310120
520012131243200210
6353003534301424
731114621604146
oct4357046246430
91070288600457
10306965990680
11109202332198
124b5aa357874
1322c4008799b
1410c00368596
157eb900b1da
hex4778994d18

306965990680 has 16 divisors (see below), whose sum is σ = 690673479120. Its totient is φ = 122786396256.

The previous prime is 306965990657. The next prime is 306965990689. The reversal of 306965990680 is 86099569603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306965990689) 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, 3837074844 + ... + 3837074923.

It is an arithmetic number, because the mean of its divisors is an integer number (43167092445).

Almost surely, 2306965990680 is an apocalyptic number.

It is an amenable number.

306965990680 is an abundant number, since it is smaller than the sum of its proper divisors (383707488440).

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

306965990680 is a wasteful number, since it uses less digits than its factorization.

306965990680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7674149778 (or 7674149774 counting only the distinct ones).

The product of its (nonzero) digits is 18895680, while the sum is 61.

The spelling of 306965990680 in words is "three hundred six billion, nine hundred sixty-five million, nine hundred ninety thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 7674149767 15348299534 30696599068 38370748835 61393198136 76741497670 153482995340 306965990680