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20294233 = 671012999
BaseRepresentation
bin100110101101…
…0101001011001
31102012001110021
41031122221121
520143403413
62002550441
7334332601
oct115325131
942161407
1020294233
11105013a3
126968421
13428732b
1429a3c01
151bad18d
hex135aa59

20294233 has 8 divisors (see below), whose sum is σ = 20808000. Its totient is φ = 19786800.

The previous prime is 20294203. The next prime is 20294251. The reversal of 20294233 is 33249202.

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 20294233 - 25 = 20294201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20294198 and 20294207.

It is not an unprimeable number, because it can be changed into a prime (20294203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5268 + ... + 8266.

It is an arithmetic number, because the mean of its divisors is an integer number (2601000).

Almost surely, 220294233 is an apocalyptic number.

It is an amenable number.

20294233 is a deficient number, since it is larger than the sum of its proper divisors (513767).

20294233 is a wasteful number, since it uses less digits than its factorization.

20294233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20294233 is about 4504.9120968117. The cubic root of 20294233 is about 272.7664055732.

The spelling of 20294233 in words is "twenty million, two hundred ninety-four thousand, two hundred thirty-three".

Divisors: 1 67 101 2999 6767 200933 302899 20294233