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23234653 = 131787281
BaseRepresentation
bin101100010100…
…0100001011101
31121201102221201
41120220201131
521422002103
62145555501
7401330341
oct130504135
947642851
1023234653
111212a5a2
127945b91
134a76820
14312b621
15208e51d
hex162885d

23234653 has 4 divisors (see below), whose sum is σ = 25021948. Its totient is φ = 21447360.

The previous prime is 23234641. The next prime is 23234657. The reversal of 23234653 is 35643232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1304164 + 21930489 = 1142^2 + 4683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23234653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23234657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893628 + ... + 893653.

It is an arithmetic number, because the mean of its divisors is an integer number (6255487).

Almost surely, 223234653 is an apocalyptic number.

It is an amenable number.

23234653 is a deficient number, since it is larger than the sum of its proper divisors (1787295).

23234653 is a wasteful number, since it uses less digits than its factorization.

23234653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787294.

The product of its digits is 12960, while the sum is 28.

The square root of 23234653 is about 4820.2337080270. The cubic root of 23234653 is about 285.3505607205.

Adding to 23234653 its reverse (35643232), we get a palindrome (58877885).

The spelling of 23234653 in words is "twenty-three million, two hundred thirty-four thousand, six hundred fifty-three".

Divisors: 1 13 1787281 23234653