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306969764 = 22106971789
BaseRepresentation
bin10010010010111…
…111110010100100
3210101121200100112
4102102333302210
51112041013024
650243232152
710415125403
oct2222776244
9711550315
10306969764
11148304a22
1286978658
134b79b31a
142caa963a
151be3900e
hex124bfca4

306969764 has 12 divisors (see below), whose sum is σ = 537707100. Its totient is φ = 153339168.

The previous prime is 306969713. The next prime is 306969769. The reversal of 306969764 is 467969603.

It can be written as a sum of positive squares in 2 ways, for example, as 132940900 + 174028864 = 11530^2 + 13192^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (306969769) 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, 31619 + ... + 40170.

It is an arithmetic number, because the mean of its divisors is an integer number (44808925).

Almost surely, 2306969764 is an apocalyptic number.

It is an amenable number.

306969764 is a deficient number, since it is larger than the sum of its proper divisors (230737336).

306969764 is a wasteful number, since it uses less digits than its factorization.

306969764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72862 (or 72860 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 50.

The square root of 306969764 is about 17520.5526168554. The cubic root of 306969764 is about 674.5775236512.

The spelling of 306969764 in words is "three hundred six million, nine hundred sixty-nine thousand, seven hundred sixty-four".

Divisors: 1 2 4 1069 2138 4276 71789 143578 287156 76742441 153484882 306969764