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23203112202 = 2331034171721
BaseRepresentation
bin10101100111000000…
…110110010100001010
32012220001202020011000
4111213000312110022
5340004444042302
614354231115430
71450665125304
oct254700662412
965801666130
1023203112202
119927608696
1245b6812b76
13225a195bba
1411a1880974
1590c08131c
hex56703650a

23203112202 has 32 divisors (see below), whose sum is σ = 52063090560. Its totient is φ = 7659277920.

The previous prime is 23203112171. The next prime is 23203112203. The reversal of 23203112202 is 20221130232.

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

It is not an unprimeable number, because it can be changed into a prime (23203112203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2080299 + ... + 2091422.

It is an arithmetic number, because the mean of its divisors is an integer number (1626971580).

Almost surely, 223203112202 is an apocalyptic number.

23203112202 is an abundant number, since it is smaller than the sum of its proper divisors (28859978358).

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

23203112202 is a wasteful number, since it uses less digits than its factorization.

23203112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171835 (or 4171829 counting only the distinct ones).

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

Adding to 23203112202 its reverse (20221130232), we get a palindrome (43424242434).

The spelling of 23203112202 in words is "twenty-three billion, two hundred three million, one hundred twelve thousand, two hundred two".

Divisors: 1 2 3 6 9 18 27 54 103 206 309 618 927 1854 2781 5562 4171721 8343442 12515163 25030326 37545489 75090978 112636467 225272934 429687263 859374526 1289061789 2578123578 3867185367 7734370734 11601556101 23203112202