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23085413438 = 211542706719
BaseRepresentation
bin10101011111111111…
…110111010000111110
32012120212021111210112
4111133333313100332
5334234331212223
614334424310022
71445035530233
oct253777672076
965525244715
1023085413438
11987712888a
124583312312
13223b996569
14118dda378a
15901a82778
hex55fff743e

23085413438 has 4 divisors (see below), whose sum is σ = 34628120160. Its totient is φ = 11542706718.

The previous prime is 23085413437. The next prime is 23085413453. The reversal of 23085413438 is 83431458032.

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

It is a junction number, because it is equal to n+sod(n) for n = 23085413395 and 23085413404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23085413437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771353358 + ... + 5771353361.

It is an arithmetic number, because the mean of its divisors is an integer number (8657030040).

Almost surely, 223085413438 is an apocalyptic number.

23085413438 is a deficient number, since it is larger than the sum of its proper divisors (11542706722).

23085413438 is a wasteful number, since it uses less digits than its factorization.

23085413438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11542706721.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 23085413438 in words is "twenty-three billion, eighty-five million, four hundred thirteen thousand, four hundred thirty-eight".

Divisors: 1 2 11542706719 23085413438