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23202201320 = 235580055033
BaseRepresentation
bin10101100110111101…
…010111111011101000
32012220000000221122122
4111212331113323220
5340004230420240
614354155410412
71450654312544
oct254675277350
965800027578
1023202201320
1199270462a1
1245b6453a08
132259c3740c
1411a16c4a24
1590be514b5
hex566f57ee8

23202201320 has 16 divisors (see below), whose sum is σ = 52204953060. Its totient is φ = 9280880512.

The previous prime is 23202201301. The next prime is 23202201343. The reversal of 23202201320 is 2310220232.

It can be written as a sum of positive squares in 2 ways, for example, as 21878551396 + 1323649924 = 147914^2 + 36382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290027477 + ... + 290027556.

Almost surely, 223202201320 is an apocalyptic number.

23202201320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23202201320 is an abundant number, since it is smaller than the sum of its proper divisors (29002751740).

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

23202201320 is a wasteful number, since it uses less digits than its factorization.

23202201320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580055044 (or 580055040 counting only the distinct ones).

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

Adding to 23202201320 its reverse (2310220232), we get a palindrome (25512421552).

The spelling of 23202201320 in words is "twenty-three billion, two hundred two million, two hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 580055033 1160110066 2320220132 2900275165 4640440264 5800550330 11601100660 23202201320