Search a number
-
+
23923049 = 41737993
BaseRepresentation
bin101101101000…
…0100101101001
31200000102020212
41123100211221
522111014144
62212430505
7410225333
oct133204551
950012225
1023923049
111255a817
128018435
134c57c67
14326a453
15217849e
hex16d0969

23923049 has 8 divisors (see below), whose sum is σ = 24845352. Its totient is φ = 23016960.

The previous prime is 23923037. The next prime is 23923069. The reversal of 23923049 is 94032932.

It can be written as a sum of positive squares in 4 ways, for example, as 225625 + 23697424 = 475^2 + 4868^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23923049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23923019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004 + ... + 6989.

It is an arithmetic number, because the mean of its divisors is an integer number (3105669).

Almost surely, 223923049 is an apocalyptic number.

It is an amenable number.

23923049 is a deficient number, since it is larger than the sum of its proper divisors (922303).

23923049 is an equidigital number, since it uses as much as digits as its factorization.

23923049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8107.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 23923049 is about 4891.1194015276. The cubic root of 23923049 is about 288.1412991377.

The spelling of 23923049 in words is "twenty-three million, nine hundred twenty-three thousand, forty-nine".

Divisors: 1 41 73 2993 7993 327713 583489 23923049