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23210132309 = 7132191032617
BaseRepresentation
bin10101100111011011…
…101000001101010101
32012220112221212220222
4111213123220031111
5340013243213214
614355041404125
71451111604140
oct254733501525
965815855828
1023210132309
119930572a31
1245b9039645
13225b783300
1411a278b057
1590c9bb38e
hex5676e8355

23210132309 has 24 divisors (see below), whose sum is σ = 30235055040. Its totient is φ = 17397514368.

The previous prime is 23210132303. The next prime is 23210132327. The reversal of 23210132309 is 90323101232.

It is not a de Polignac number, because 23210132309 - 28 = 23210132053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210132303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493832 + ... + 538785.

It is an arithmetic number, because the mean of its divisors is an integer number (1259793960).

Almost surely, 223210132309 is an apocalyptic number.

It is an amenable number.

23210132309 is a deficient number, since it is larger than the sum of its proper divisors (7024922731).

23210132309 is a wasteful number, since it uses less digits than its factorization.

23210132309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032669 (or 1032656 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 23210132309 in words is "twenty-three billion, two hundred ten million, one hundred thirty-two thousand, three hundred nine".

Divisors: 1 7 13 19 91 133 169 247 1183 1729 3211 22477 1032617 7228319 13424021 19619723 93968147 137338061 174512273 255056399 1221585911 1785394793 3315733187 23210132309