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20314874 = 210157437
BaseRepresentation
bin100110101111…
…1101011111010
31102020002202202
41031133223322
520200033444
62003230202
7334450016
oct115375372
942202682
1020314874
1110515958
126978362
134293848
1429ab546
151bb434e
hex135fafa

20314874 has 4 divisors (see below), whose sum is σ = 30472314. Its totient is φ = 10157436.

The previous prime is 20314867. The next prime is 20314907. The reversal of 20314874 is 47841302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 822649 = 4415^2 + 907^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078717 + ... + 5078720.

Almost surely, 220314874 is an apocalyptic number.

20314874 is a deficient number, since it is larger than the sum of its proper divisors (10157440).

20314874 is a wasteful number, since it uses less digits than its factorization.

20314874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10157439.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 20314874 is about 4507.2024582883. The cubic root of 20314874 is about 272.8588499582.

The spelling of 20314874 in words is "twenty million, three hundred fourteen thousand, eight hundred seventy-four".

Divisors: 1 2 10157437 20314874