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801420808 = 23568917609
BaseRepresentation
bin101111110001001…
…011011000001000
32001212000101200011
4233301023120020
53120130431213
6211305121304
725600651546
oct5761133010
92055011604
10801420808
11381421351
121a4489234
13ca05c7c6
1478618d96
154a55803d
hex2fc4b608

801420808 has 16 divisors (see below), whose sum is σ = 1503013500. Its totient is φ = 400617216.

The previous prime is 801420803. The next prime is 801420821. The reversal of 801420808 is 808024108.

It can be written as a sum of positive squares in 2 ways, for example, as 672779844 + 128640964 = 25938^2 + 11342^2 .

It is a super-2 number, since 2×8014208082 = 1284550622990745728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 801420808.

It is not an unprimeable number, because it can be changed into a prime (801420803) 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, 36708 + ... + 54316.

Almost surely, 2801420808 is an apocalyptic number.

It is an amenable number.

801420808 is a deficient number, since it is larger than the sum of its proper divisors (701592692).

801420808 is a wasteful number, since it uses less digits than its factorization.

801420808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23304 (or 23300 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 801420808 is about 28309.3766798211. The cubic root of 801420808 is about 928.8670089099.

The spelling of 801420808 in words is "eight hundred one million, four hundred twenty thousand, eight hundred eight".

Divisors: 1 2 4 8 5689 11378 17609 22756 35218 45512 70436 140872 100177601 200355202 400710404 801420808