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23780693 = 103323021
BaseRepresentation
bin101101010110…
…1110101010101
31122202011222102
41122231311111
522041440233
62205411445
7406063316
oct132556525
948664872
1023780693
1112472872
127b69b85
134c08221
14323060d
15214b1e8
hex16add55

23780693 has 4 divisors (see below), whose sum is σ = 23804748. Its totient is φ = 23756640.

The previous prime is 23780681. The next prime is 23780707. The reversal of 23780693 is 39608732.

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 14002564 + 9778129 = 3742^2 + 3127^2 .

It is a cyclic number.

It is not a de Polignac number, because 23780693 - 26 = 23780629 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 (23780993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10478 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (5951187).

Almost surely, 223780693 is an apocalyptic number.

It is an amenable number.

23780693 is a deficient number, since it is larger than the sum of its proper divisors (24055).

23780693 is a wasteful number, since it uses less digits than its factorization.

23780693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24054.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 23780693 is about 4876.5451910138. The cubic root of 23780693 is about 287.5686258358.

The spelling of 23780693 in words is "twenty-three million, seven hundred eighty thousand, six hundred ninety-three".

Divisors: 1 1033 23021 23780693