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23380456513 = 118719697099
BaseRepresentation
bin10101110001100101…
…010111010001000001
32020100102110020210211
4111301211113101001
5340340344102023
614424004154121
71455250413151
oct256145272101
966312406724
1023380456513
119a08727037
124646098941
132287b4a06b
1411bb246761
1591c912a0d
hex571957441

23380456513 has 4 divisors (see below), whose sum is σ = 23400154800. Its totient is φ = 23360758228.

The previous prime is 23380456511. The next prime is 23380456529. The reversal of 23380456513 is 31565408332.

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 23380456513 - 21 = 23380456511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23380456511) 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, 9847363 + ... + 9849736.

It is an arithmetic number, because the mean of its divisors is an integer number (5850038700).

Almost surely, 223380456513 is an apocalyptic number.

It is an amenable number.

23380456513 is a deficient number, since it is larger than the sum of its proper divisors (19698287).

23380456513 is a wasteful number, since it uses less digits than its factorization.

23380456513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19698286.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 23380456513 in words is "twenty-three billion, three hundred eighty million, four hundred fifty-six thousand, five hundred thirteen".

Divisors: 1 1187 19697099 23380456513