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20316057233 = 971171178859
BaseRepresentation
bin10010111010111011…
…100110111010010001
31221102212020122021012
4102322323212322101
5313101402312413
613155535340305
71316310431363
oct227273467221
957385218235
1020316057233
11868598054a
123b2b981695
131bba008354
14daa278d33
157dd89c7a8
hex4baee6e91

20316057233 has 8 divisors (see below), whose sum is σ = 20543144160. Its totient is φ = 20089330560.

The previous prime is 20316057143. The next prime is 20316057241. The reversal of 20316057233 is 33275061302.

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 20316057233 - 210 = 20316056209 is a prime.

It is a super-3 number, since 3×203160572333 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20316057233.

It is not an unprimeable number, because it can be changed into a prime (20316057263) 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, 24158 + ... + 203016.

It is an arithmetic number, because the mean of its divisors is an integer number (2567893020).

Almost surely, 220316057233 is an apocalyptic number.

It is an amenable number.

20316057233 is a deficient number, since it is larger than the sum of its proper divisors (227086927).

20316057233 is a wasteful number, since it uses less digits than its factorization.

20316057233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180127.

The product of its (nonzero) digits is 22680, while the sum is 32.

The spelling of 20316057233 in words is "twenty billion, three hundred sixteen million, fifty-seven thousand, two hundred thirty-three".

Divisors: 1 97 1171 113587 178859 17349323 209443889 20316057233