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23421653 is a prime number
BaseRepresentation
bin101100101011…
…0001011010101
31122001221110122
41121112023111
521443443103
62154001325
7403036463
oct131261325
948057418
1023421653
1112248042
127a16245
134b10988
143179833
1520c9b38
hex16562d5

23421653 has 2 divisors, whose sum is σ = 23421654. Its totient is φ = 23421652.

The previous prime is 23421649. The next prime is 23421667. The reversal of 23421653 is 35612432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22486564 + 935089 = 4742^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 23421653 - 22 = 23421649 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23421253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710826 + 11710827.

It is an arithmetic number, because the mean of its divisors is an integer number (11710827).

Almost surely, 223421653 is an apocalyptic number.

It is an amenable number.

23421653 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421653 is an equidigital number, since it uses as much as digits as its factorization.

23421653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 26.

The square root of 23421653 is about 4839.5922348892. The cubic root of 23421653 is about 286.1140472994.

The spelling of 23421653 in words is "twenty-three million, four hundred twenty-one thousand, six hundred fifty-three".