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23132103220 = 2251156605161
BaseRepresentation
bin10101100010110001…
…111110001000110100
32012201010010121010201
4111202301332020310
5334333304300340
614343213130244
71446143430112
oct254261761064
965633117121
1023132103220
1198a0518586
124596a89984
132248563055
141196278ab2
15905c0679a
hex562c7e234

23132103220 has 12 divisors (see below), whose sum is σ = 48577416804. Its totient is φ = 9252841280.

The previous prime is 23132103217. The next prime is 23132103259. The reversal of 23132103220 is 2230123132.

It can be written as a sum of positive squares in 2 ways, for example, as 3452502564 + 19679600656 = 58758^2 + 140284^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578302561 + ... + 578302600.

It is an arithmetic number, because the mean of its divisors is an integer number (4048118067).

Almost surely, 223132103220 is an apocalyptic number.

23132103220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23132103220 is an abundant number, since it is smaller than the sum of its proper divisors (25445313584).

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

23132103220 is a wasteful number, since it uses less digits than its factorization.

23132103220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156605170 (or 1156605168 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23132103220 its reverse (2230123132), we get a palindrome (25362226352).

The spelling of 23132103220 in words is "twenty-three billion, one hundred thirty-two million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1156605161 2313210322 4626420644 5783025805 11566051610 23132103220