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20294812 = 2219267037
BaseRepresentation
bin100110101101…
…0110010011100
31102012002020201
41031122302130
520143413222
62002553244
7334334356
oct115326234
942162221
1020294812
111050187a
126968824
134287685
1429a40d6
151bad427
hex135ac9c

20294812 has 12 divisors (see below), whose sum is σ = 37385320. Its totient is φ = 9613296.

The previous prime is 20294789. The next prime is 20294861. The reversal of 20294812 is 21849202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133443 + ... + 133594.

Almost surely, 220294812 is an apocalyptic number.

It is an amenable number.

20294812 is a deficient number, since it is larger than the sum of its proper divisors (17090508).

20294812 is a wasteful number, since it uses less digits than its factorization.

20294812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267060 (or 267058 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 20294812 is about 4504.9763595384. The cubic root of 20294812 is about 272.7689995819.

The spelling of 20294812 in words is "twenty million, two hundred ninety-four thousand, eight hundred twelve".

Divisors: 1 2 4 19 38 76 267037 534074 1068148 5073703 10147406 20294812