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23740961 = 113210097
BaseRepresentation
bin101101010010…
…0001000100001
31122200011110212
41122210020201
522034202321
62204503505
7405536426
oct132441041
948604425
1023740961
1112445a32
127b4ab95
134bc310a
14321dd4d
15213e55b
hex16a4221

23740961 has 4 divisors (see below), whose sum is σ = 23951172. Its totient is φ = 23530752.

The previous prime is 23740933. The next prime is 23740967. The reversal of 23740961 is 16904732.

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 5550736 + 18190225 = 2356^2 + 4265^2 .

It is a cyclic number.

It is not a de Polignac number, because 23740961 - 214 = 23724577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23740967) 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, 104936 + ... + 105161.

It is an arithmetic number, because the mean of its divisors is an integer number (5987793).

Almost surely, 223740961 is an apocalyptic number.

It is an amenable number.

23740961 is a deficient number, since it is larger than the sum of its proper divisors (210211).

23740961 is a wasteful number, since it uses less digits than its factorization.

23740961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210210.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 23740961 is about 4872.4697023173. The cubic root of 23740961 is about 287.4083831582.

The spelling of 23740961 in words is "twenty-three million, seven hundred forty thousand, nine hundred sixty-one".

Divisors: 1 113 210097 23740961