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23001223100 = 2252331694901
BaseRepresentation
bin10101011010111110…
…101100111110111100
32012100222212012100212
4111122332230332330
5334101303114400
614322220011552
71442664112322
oct253276547674
965328765325
1023001223100
119833655399
12455b090bb8
1322273c9aab
141182b29d12
158e94a2335
hex55afacfbc

23001223100 has 36 divisors (see below), whose sum is σ = 50063519688. Its totient is φ = 9172680000.

The previous prime is 23001223099. The next prime is 23001223103. The reversal of 23001223100 is 132210032.

It is a happy number.

It is a super-2 number, since 2×230012231002 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001223103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 314351 + ... + 380550.

Almost surely, 223001223100 is an apocalyptic number.

23001223100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23001223100 is an abundant number, since it is smaller than the sum of its proper divisors (27062296588).

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

23001223100 is a wasteful number, since it uses less digits than its factorization.

23001223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695246 (or 695239 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23001223100 its reverse (132210032), we get a palindrome (23133433132).

The spelling of 23001223100 in words is "twenty-three billion, one million, two hundred twenty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 331 662 1324 1655 3310 6620 8275 16550 33100 694901 1389802 2779604 3474505 6949010 13898020 17372525 34745050 69490100 230012231 460024462 920048924 1150061155 2300122310 4600244620 5750305775 11500611550 23001223100