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10020000023 = 11910909093
BaseRepresentation
bin10010101010011110…
…10001000100010111
3221212022101201222222
421111033101010113
5131010110000043
64334135212555
7503206411025
oct112517210427
927768351888
1010020000023
114282035360
121b3781715b
13c38ba08c7
146b0a8b715
153d9a0dd68
hex2553d1117

10020000023 has 4 divisors (see below), whose sum is σ = 10930909128. Its totient is φ = 9109090920.

The previous prime is 10020000019. The next prime is 10020000043. The reversal of 10020000023 is 32000002001.

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

It is a cyclic number.

It is not a de Polignac number, because 10020000023 - 22 = 10020000019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020000043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455454536 + ... + 455454557.

It is an arithmetic number, because the mean of its divisors is an integer number (2732727282).

Almost surely, 210020000023 is an apocalyptic number.

10020000023 is a deficient number, since it is larger than the sum of its proper divisors (910909105).

10020000023 is an equidigital number, since it uses as much as digits as its factorization.

10020000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910909104.

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 10020000023 its reverse (32000002001), we get a palindrome (42020002024).

The spelling of 10020000023 in words is "ten billion, twenty million, twenty-three", and thus it is an aban number and an uban number.

Divisors: 1 11 910909093 10020000023