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23138501241 = 37712833747
BaseRepresentation
bin10101100011001010…
…011000001001111001
32012201120011122120110
4111203022120021321
5334341424014431
614344002214533
71446252005202
oct254312301171
965646148513
1023138501241
1198a40984a9
124599054449
13224999326b
1411970625a9
1590656c346
hex563298279

23138501241 has 4 divisors (see below), whose sum is σ = 30851334992. Its totient is φ = 15425667492.

The previous prime is 23138501231. The next prime is 23138501251. The reversal of 23138501241 is 14210583132.

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 an interprime number because it is at equal distance from previous prime (23138501231) and next prime (23138501251).

It is not a de Polignac number, because 23138501241 - 29 = 23138500729 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23138501199 and 23138501208.

It is not an unprimeable number, because it can be changed into a prime (23138501231) 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, 3856416871 + ... + 3856416876.

It is an arithmetic number, because the mean of its divisors is an integer number (7712833748).

Almost surely, 223138501241 is an apocalyptic number.

It is an amenable number.

23138501241 is a deficient number, since it is larger than the sum of its proper divisors (7712833751).

23138501241 is an equidigital number, since it uses as much as digits as its factorization.

23138501241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7712833750.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 23138501241 in words is "twenty-three billion, one hundred thirty-eight million, five hundred one thousand, two hundred forty-one".

Divisors: 1 3 7712833747 23138501241