Search a number
-
+
23454454013 = 63433697691
BaseRepresentation
bin10101110101111111…
…101001000011111101
32020112120200201021222
4111311333221003331
5341013320012023
614435210203125
71460136366254
oct256577510375
966476621258
1023454454013
119a464784a1
124666a234a5
13229a288273
1411c6dc979b
1592417ccc8
hex575fe90fd

23454454013 has 4 divisors (see below), whose sum is σ = 23458158048. Its totient is φ = 23450749980.

The previous prime is 23454454003. The next prime is 23454454063. The reversal of 23454454013 is 31045445432.

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 23454454013 - 222 = 23450259709 is a prime.

It is a super-2 number, since 2×234544540132 (a number of 22 digits) 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 (23454454003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1842503 + ... + 1855188.

It is an arithmetic number, because the mean of its divisors is an integer number (5864539512).

Almost surely, 223454454013 is an apocalyptic number.

It is an amenable number.

23454454013 is a deficient number, since it is larger than the sum of its proper divisors (3704035).

23454454013 is an equidigital number, since it uses as much as digits as its factorization.

23454454013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3704034.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 23454454013 its reverse (31045445432), we get a palindrome (54499899445).

The spelling of 23454454013 in words is "twenty-three billion, four hundred fifty-four million, four hundred fifty-four thousand, thirteen".

Divisors: 1 6343 3697691 23454454013