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23203220000 = 25541160161
BaseRepresentation
bin10101100111000001…
…010000101000100000
32012220001221201000112
4111213001100220200
5340010011020000
614354233310452
71450666054502
oct254701205040
965801851015
1023203220000
119927681684
1245b6865428
13225a202c9c
1411a18abd72
1590c0a3235
hex567050a20

23203220000 has 60 divisors (see below), whose sum is σ = 57083450886. Its totient is φ = 9281280000.

The previous prime is 23203219999. The next prime is 23203220003. The reversal of 23203220000 is 2230232.

It can be written as a sum of positive squares in 5 ways, for example, as 1454049424 + 21749170576 = 38132^2 + 147476^2 .

It is not an unprimeable number, because it can be changed into a prime (23203220003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 560081 + ... + 600080.

Almost surely, 223203220000 is an apocalyptic number.

23203220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203220000 is an abundant number, since it is smaller than the sum of its proper divisors (33880230886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23203220000 is an equidigital number, since it uses as much as digits as its factorization.

23203220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160191 (or 1160168 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 23203220000 its reverse (2230232), we get a palindrome (23205450232).

The spelling of 23203220000 in words is "twenty-three billion, two hundred three million, two hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 625 800 1000 1250 2000 2500 4000 5000 10000 20000 1160161 2320322 4640644 5800805 9281288 11601610 18562576 23203220 29004025 37125152 46406440 58008050 92812880 116016100 145020125 185625760 232032200 290040250 464064400 580080500 725100625 928128800 1160161000 1450201250 2320322000 2900402500 4640644000 5800805000 11601610000 23203220000