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20314930 = 252031493
BaseRepresentation
bin100110101111…
…1101100110010
31102020002211211
41031133230302
520200034210
62003230334
7334450126
oct115375462
942202754
1020314930
11105159a9
1269783aa
13429388c
1429ab586
151bb438a
hex135fb32

20314930 has 8 divisors (see below), whose sum is σ = 36566892. Its totient is φ = 8125968.

The previous prime is 20314927. The next prime is 20314937. The reversal of 20314930 is 3941302.

It can be written as a sum of positive squares in 2 ways, for example, as 19035769 + 1279161 = 4363^2 + 1131^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20314937) 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, 1015737 + ... + 1015756.

Almost surely, 220314930 is an apocalyptic number.

20314930 is a deficient number, since it is larger than the sum of its proper divisors (16251962).

20314930 is a wasteful number, since it uses less digits than its factorization.

20314930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031500.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 20314930 is about 4507.2086705632. The cubic root of 20314930 is about 272.8591006789.

The spelling of 20314930 in words is "twenty million, three hundred fourteen thousand, nine hundred thirty".

Divisors: 1 2 5 10 2031493 4062986 10157465 20314930