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23681269 = 71333539
BaseRepresentation
bin101101001010…
…1100011110101
31122120010121001
41122111203311
522030300034
62203323301
7405200413
oct132254365
948503531
1023681269
11124050a7
127b20531
134ba1bb1
1432062b3
15212ba14
hex16958f5

23681269 has 4 divisors (see below), whose sum is σ = 24014880. Its totient is φ = 23347660.

The previous prime is 23681257. The next prime is 23681299. The reversal of 23681269 is 96218632.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23681269 - 219 = 23156981 is a prime.

It is a super-2 number, since 2×236812692 = 1121605002900722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23681219) 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, 166699 + ... + 166840.

It is an arithmetic number, because the mean of its divisors is an integer number (6003720).

Almost surely, 223681269 is an apocalyptic number.

It is an amenable number.

23681269 is a deficient number, since it is larger than the sum of its proper divisors (333611).

23681269 is an equidigital number, since it uses as much as digits as its factorization.

23681269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333610.

The product of its digits is 31104, while the sum is 37.

The square root of 23681269 is about 4866.3404114386. The cubic root of 23681269 is about 287.1673036195.

The spelling of 23681269 in words is "twenty-three million, six hundred eighty-one thousand, two hundred sixty-nine".

Divisors: 1 71 333539 23681269