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20376885 = 351358459
BaseRepresentation
bin100110110111…
…0110100110101
31102100020211110
41031232310311
520204030020
62004425233
7335125554
oct115566465
942306743
1020376885
1110558501
1269a8219
1342b5b39
1429c5d9b
151bc78e0
hex136ed35

20376885 has 8 divisors (see below), whose sum is σ = 32603040. Its totient is φ = 10867664.

The previous prime is 20376871. The next prime is 20376893. The reversal of 20376885 is 58867302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20376885 - 24 = 20376869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679215 + ... + 679244.

It is an arithmetic number, because the mean of its divisors is an integer number (4075380).

Almost surely, 220376885 is an apocalyptic number.

It is an amenable number.

20376885 is a deficient number, since it is larger than the sum of its proper divisors (12226155).

20376885 is a wasteful number, since it uses less digits than its factorization.

20376885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358467.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 20376885 is about 4514.0763174763. The cubic root of 20376885 is about 273.1362011405.

The spelling of 20376885 in words is "twenty million, three hundred seventy-six thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 1358459 4075377 6792295 20376885