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23111232025 = 5272329319597
BaseRepresentation
bin10101100001100010…
…010110101000011001
32012122122212020020111
4111201202112220121
5334312433411100
614341145524321
71445501142130
oct254142265031
965578766214
1023111232025
11988a762762
12458baa36a1
13224413622b
1411935a4917
15903e826ba
hex561896a19

23111232025 has 48 divisors (see below), whose sum is σ = 34294305024. Its totient is φ = 15106164480.

The previous prime is 23111231999. The next prime is 23111232031. The reversal of 23111232025 is 52023211132.

It is not a de Polignac number, because 23111232025 - 213 = 23111223833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23111231987 and 23111232005.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1169527 + ... + 1189123.

It is an arithmetic number, because the mean of its divisors is an integer number (714464688).

Almost surely, 223111232025 is an apocalyptic number.

23111232025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23111232025 is a deficient number, since it is larger than the sum of its proper divisors (11183072999).

23111232025 is a wasteful number, since it uses less digits than its factorization.

23111232025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19930 (or 19925 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 23111232025 its reverse (52023211132), we get a palindrome (75134443157).

The spelling of 23111232025 in words is "twenty-three billion, one hundred eleven million, two hundred thirty-two thousand, twenty-five".

Divisors: 1 5 7 23 25 35 115 161 175 293 575 805 1465 2051 4025 6739 7325 10255 19597 33695 47173 51275 97985 137179 168475 235865 450731 489925 685895 1179325 2253655 3155117 3429475 5741921 11268275 15775585 28709605 40193447 78877925 132064183 143548025 200967235 660320915 924449281 1004836175 3301604575 4622246405 23111232025