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23312123300 = 2252233121233
BaseRepresentation
bin10101101101100000…
…101100010110100100
32020011122212120021002
4111231200230112210
5340220400421200
614413123412432
71453460531024
oct255540542644
966148776232
1023312123300
1199830a4304
124627224118
1322769430cb
1411b2139a84
15916915bd5
hex56d82c5a4

23312123300 has 18 divisors (see below), whose sum is σ = 50587307778. Its totient is φ = 9324849280.

The previous prime is 23312123279. The next prime is 23312123369. The reversal of 23312123300 is 332121332.

It can be written as a sum of positive squares in 3 ways, for example, as 8250452224 + 15061671076 = 90832^2 + 122726^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116560517 + ... + 116560716.

Almost surely, 223312123300 is an apocalyptic number.

23312123300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23312123300 is an abundant number, since it is smaller than the sum of its proper divisors (27275184478).

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

23312123300 is a wasteful number, since it uses less digits than its factorization.

23312123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233121247 (or 233121240 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23312123300 its reverse (332121332), we get a palindrome (23644244632).

The spelling of 23312123300 in words is "twenty-three billion, three hundred twelve million, one hundred twenty-three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 233121233 466242466 932484932 1165606165 2331212330 4662424660 5828030825 11656061650 23312123300