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20122023023 = 73275644151
BaseRepresentation
bin10010101111010111…
…011011010001101111
31220221100010200100222
4102233113123101233
5312202214214043
613124404441555
71311433242104
oct225727332157
956840120328
1020122023023
1185963a27a3
123a969a92bb
131b88a5c5cb
14d8c5aaaab
157cb820d68
hex4af5db46f

20122023023 has 4 divisors (see below), whose sum is σ = 20397667248. Its totient is φ = 19846378800.

The previous prime is 20122022993. The next prime is 20122023029. The reversal of 20122023023 is 32032022102.

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 20122023023 - 234 = 2942153839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122022992 and 20122023010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122023029) 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, 137822003 + ... + 137822148.

It is an arithmetic number, because the mean of its divisors is an integer number (5099416812).

Almost surely, 220122023023 is an apocalyptic number.

20122023023 is a deficient number, since it is larger than the sum of its proper divisors (275644225).

20122023023 is an equidigital number, since it uses as much as digits as its factorization.

20122023023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275644224.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20122023023 its reverse (32032022102), we get a palindrome (52154045125).

The spelling of 20122023023 in words is "twenty billion, one hundred twenty-two million, twenty-three thousand, twenty-three".

Divisors: 1 73 275644151 20122023023