Search a number
-
+
10023010031 = 378310331687
BaseRepresentation
bin10010101010110101…
…01111111011101111
3221212112001122221202
421111122233323233
5131011342310111
64334323520115
7503244115406
oct112532577357
927775048852
1010023010031
114283800871
121b3882903b
13c396b5988
146b123263d
153d9e05b3b
hex2556afeef

10023010031 has 16 divisors (see below), whose sum is σ = 10519401984. Its totient is φ = 9540781344.

The previous prime is 10023010027. The next prime is 10023010079. The reversal of 10023010031 is 13001032001.

It is a cyclic number.

It is not a de Polignac number, because 10023010031 - 22 = 10023010027 is a prime.

It is a super-2 number, since 2×100230100312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10023009994 and 10023010021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023010091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300470 + ... + 332156.

It is an arithmetic number, because the mean of its divisors is an integer number (657462624).

Almost surely, 210023010031 is an apocalyptic number.

10023010031 is a deficient number, since it is larger than the sum of its proper divisors (496391953).

10023010031 is a wasteful number, since it uses less digits than its factorization.

10023010031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31910.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 10023010031 its reverse (13001032001), we get a palindrome (23024042032).

The spelling of 10023010031 in words is "ten billion, twenty-three million, ten thousand, thirty-one".

Divisors: 1 37 83 103 3071 3811 8549 31687 316313 1172419 2630021 3263761 97310777 120759157 270892163 10023010031