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20073807459 = 3213916398443
BaseRepresentation
bin10010101100011111…
…011111111001100011
31220210222102002001100
4102230133133321203
5312102343314314
613115523205443
71310306355666
oct225437377143
956728362040
1020073807459
118571160722
123a82816883
131b7ba7a4a4
14d860196dd
157c7499c09
hex4ac7dfe63

20073807459 has 24 divisors (see below), whose sum is σ = 29383565120. Its totient is φ = 13204616112.

The previous prime is 20073807431. The next prime is 20073807499. The reversal of 20073807459 is 95470837002.

It is not a de Polignac number, because 20073807459 - 25 = 20073807427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20073807409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154692 + ... + 253134.

Almost surely, 220073807459 is an apocalyptic number.

20073807459 is a deficient number, since it is larger than the sum of its proper divisors (9309757661).

20073807459 is a wasteful number, since it uses less digits than its factorization.

20073807459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98751 (or 98748 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 20073807459 in words is "twenty billion, seventy-three million, eight hundred seven thousand, four hundred fifty-nine".

Divisors: 1 3 9 139 163 417 489 1251 1467 22657 67971 98443 203913 295329 885987 13683577 16046209 41050731 48138627 123152193 144415881 2230423051 6691269153 20073807459