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23210312947 is a prime number
BaseRepresentation
bin10101100111011100…
…010100010011110011
32012220120022001201021
4111213130110103303
5340013320003242
614355045320311
71451113255603
oct254734242363
965816261637
1023210312947
119930686718
1245b9106097
13225b8175b3
1411a27d6c03
1590ca04b67
hex5677144f3

23210312947 has 2 divisors, whose sum is σ = 23210312948. Its totient is φ = 23210312946.

The previous prime is 23210312929. The next prime is 23210313013. The reversal of 23210312947 is 74921301232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23210312947 - 27 = 23210312819 is a prime.

It is not a weakly prime, because it can be changed into another prime (23210312647) 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 as a sum of consecutive naturals, namely, 11605156473 + 11605156474.

It is an arithmetic number, because the mean of its divisors is an integer number (11605156474).

Almost surely, 223210312947 is an apocalyptic number.

23210312947 is a deficient number, since it is larger than the sum of its proper divisors (1).

23210312947 is an equidigital number, since it uses as much as digits as its factorization.

23210312947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 23210312947 in words is "twenty-three billion, two hundred ten million, three hundred twelve thousand, nine hundred forty-seven".