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20147330824 = 234364957697
BaseRepresentation
bin10010110000110111…
…111101111100001000
31221000002202110010221
4102300313331330020
5312230204041244
613131111115424
71312161325555
oct226067757410
957002673127
1020147330824
1185a9708935
123aa3372b74
131b9108093a
14d91ab7a2c
157cdb6e784
hex4b0dfdf08

20147330824 has 16 divisors (see below), whose sum is σ = 37777765500. Its totient is φ = 10073260032.

The previous prime is 20147330729. The next prime is 20147330837. The reversal of 20147330824 is 42803374102.

It can be written as a sum of positive squares in 2 ways, for example, as 18473702724 + 1673628100 = 135918^2 + 40910^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20147330824.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320344 + ... + 378040.

Almost surely, 220147330824 is an apocalyptic number.

It is an amenable number.

20147330824 is a deficient number, since it is larger than the sum of its proper divisors (17630434676).

20147330824 is a wasteful number, since it uses less digits than its factorization.

20147330824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101352 (or 101348 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 20147330824 in words is "twenty billion, one hundred forty-seven million, three hundred thirty thousand, eight hundred twenty-four".

Divisors: 1 2 4 8 43649 57697 87298 115394 174596 230788 349192 461576 2518416353 5036832706 10073665412 20147330824