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23102351120 = 245288779389
BaseRepresentation
bin10101100001000000…
…011110011100010000
32012122001011000221002
4111201000132130100
5334303200213440
614340231321132
71445332513232
oct254100363420
965561130832
1023102351120
119885747372
124588b201a8
132242346b64
141192332252
159032cb115
hex56101e710

23102351120 has 20 divisors (see below), whose sum is σ = 53712966540. Its totient is φ = 9240940416.

The previous prime is 23102351071. The next prime is 23102351141. The reversal of 23102351120 is 2115320132.

It can be written as a sum of positive squares in 2 ways, for example, as 4554090256 + 18548260864 = 67484^2 + 136192^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23102351092 and 23102351101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144389615 + ... + 144389774.

It is an arithmetic number, because the mean of its divisors is an integer number (2685648327).

Almost surely, 223102351120 is an apocalyptic number.

23102351120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23102351120 is an abundant number, since it is smaller than the sum of its proper divisors (30610615420).

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

23102351120 is a wasteful number, since it uses less digits than its factorization.

23102351120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288779402 (or 288779396 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 23102351120 its reverse (2115320132), we get a palindrome (25217671252).

The spelling of 23102351120 in words is "twenty-three billion, one hundred two million, three hundred fifty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 288779389 577558778 1155117556 1443896945 2310235112 2887793890 4620470224 5775587780 11551175560 23102351120