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80020354652 = 2272857869809
BaseRepresentation
bin100101010000110010…
…1011011011001011100
321122112202102012022222
41022201211123121130
52302340202322102
6100432201524512
75531656535420
oct1124145333134
9248482365288
1080020354652
1130a33449907
12136127a3738
1377134107a4
143c31756b80
15213518eaa2
hex12a195b65c

80020354652 has 12 divisors (see below), whose sum is σ = 160040709360. Its totient is φ = 34294437696.

The previous prime is 80020354643. The next prime is 80020354669. The reversal of 80020354652 is 25645302008.

80020354652 is an admirable number.

It is a super-2 number, since 2×800203546522 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428934877 + ... + 1428934932.

It is an arithmetic number, because the mean of its divisors is an integer number (13336725780).

Almost surely, 280020354652 is an apocalyptic number.

It is an amenable number.

80020354652 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80020354652 is a wasteful number, since it uses less digits than its factorization.

80020354652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857869820 (or 2857869818 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 80020354652 in words is "eighty billion, twenty million, three hundred fifty-four thousand, six hundred fifty-two".

Divisors: 1 2 4 7 14 28 2857869809 5715739618 11431479236 20005088663 40010177326 80020354652