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20314977 = 37099551
BaseRepresentation
bin100110101111…
…1101101100001
31102020002220120
41031133231201
520200034402
62003230453
7334450224
oct115375541
942202816
1020314977
1110515a41
126978429
1342938c7
1429ab5bb
151bb43bc
hex135fb61

20314977 has 8 divisors (see below), whose sum is σ = 27127680. Its totient is φ = 13522800.

The previous prime is 20314969. The next prime is 20314981. The reversal of 20314977 is 77941302.

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

It is not a de Polignac number, because 20314977 - 23 = 20314969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20314907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2649 + ... + 6902.

It is an arithmetic number, because the mean of its divisors is an integer number (3390960).

Almost surely, 220314977 is an apocalyptic number.

It is an amenable number.

20314977 is a deficient number, since it is larger than the sum of its proper divisors (6812703).

20314977 is an equidigital number, since it uses as much as digits as its factorization.

20314977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10263.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 20314977 is about 4507.2138844302. The cubic root of 20314977 is about 272.8593111049.

The spelling of 20314977 in words is "twenty million, three hundred fourteen thousand, nine hundred seventy-seven".

Divisors: 1 3 709 2127 9551 28653 6771659 20314977