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23220231102 = 2324872648897
BaseRepresentation
bin10101101000000010…
…001001101110111110
32012221020221221212100
4111220002021232332
5340023334343402
614400042045530
71451263464525
oct255002115676
965836857770
1023220231102
119936240342
1246004a98a6
1322608aab23
1411a3c594bc
1590d81371c
hex568089bbe

23220231102 has 24 divisors (see below), whose sum is σ = 50413826736. Its totient is φ = 7724180736.

The previous prime is 23220231079. The next prime is 23220231121. The reversal of 23220231102 is 20113202232.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1315683 + ... + 1333214.

It is an arithmetic number, because the mean of its divisors is an integer number (2100576114).

Almost surely, 223220231102 is an apocalyptic number.

23220231102 is an abundant number, since it is smaller than the sum of its proper divisors (27193595634).

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

23220231102 is a wasteful number, since it uses less digits than its factorization.

23220231102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649392 (or 2649389 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23220231102 its reverse (20113202232), we get a palindrome (43333433334).

The spelling of 23220231102 in words is "twenty-three billion, two hundred twenty million, two hundred thirty-one thousand, one hundred two".

Divisors: 1 2 3 6 9 18 487 974 1461 2922 4383 8766 2648897 5297794 7946691 15893382 23840073 47680146 1290012839 2580025678 3870038517 7740077034 11610115551 23220231102