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20924310736 = 2471710989659
BaseRepresentation
bin10011011111001011…
…111010010011010000
32000000020210010012201
4103133023322103100
5320323110420421
613340144332544
71340344464250
oct233713722320
960006703181
1020924310736
11896825639a
12407b614154
131c86033874
141026d6d960
15826e9ab91
hex4df2fa4d0

20924310736 has 40 divisors (see below), whose sum is σ = 49057842240. Its totient is φ = 8440057344.

The previous prime is 20924310733. The next prime is 20924310739. The reversal of 20924310736 is 63701342902.

It is an interprime number because it is at equal distance from previous prime (20924310733) and next prime (20924310739).

It is a junction number, because it is equal to n+sod(n) for n = 20924310695 and 20924310704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20924310733) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5492926 + ... + 5496733.

It is an arithmetic number, because the mean of its divisors is an integer number (1226446056).

Almost surely, 220924310736 is an apocalyptic number.

It is an amenable number.

20924310736 is an abundant number, since it is smaller than the sum of its proper divisors (28133531504).

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

20924310736 is a wasteful number, since it uses less digits than its factorization.

20924310736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10989691 (or 10989685 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 20924310736 in words is "twenty billion, nine hundred twenty-four million, three hundred ten thousand, seven hundred thirty-six".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 68 112 119 136 238 272 476 952 1904 10989659 21979318 43958636 76927613 87917272 153855226 175834544 186824203 307710452 373648406 615420904 747296812 1230841808 1307769421 1494593624 2615538842 2989187248 5231077684 10462155368 20924310736