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20079378348 = 2231673281529
BaseRepresentation
bin10010101100110100…
…101111111110101100
31220211100220002212120
4102230310233332230
5312110310101343
613120242432540
71310404620441
oct225464577654
956740802776
1020079378348
118574316167
123a84662750
131b7cc7b083
14d86a699c8
157c7bea683
hex4acd2ffac

20079378348 has 12 divisors (see below), whose sum is σ = 46851882840. Its totient is φ = 6693126112.

The previous prime is 20079378323. The next prime is 20079378359. The reversal of 20079378348 is 84387397002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 20079378348.

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, 836640753 + ... + 836640776.

It is an arithmetic number, because the mean of its divisors is an integer number (3904323570).

Almost surely, 220079378348 is an apocalyptic number.

It is an amenable number.

20079378348 is an abundant number, since it is smaller than the sum of its proper divisors (26772504492).

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

20079378348 is a wasteful number, since it uses less digits than its factorization.

20079378348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673281536 (or 1673281534 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 20079378348 in words is "twenty billion, seventy-nine million, three hundred seventy-eight thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 1673281529 3346563058 5019844587 6693126116 10039689174 20079378348