Search a number
-
+
12103151917 = 23965377551
BaseRepresentation
bin10110100010110011…
…10111000100101101
31011020111012211011211
423101121313010231
5144241401330132
65320552314421
7605633044123
oct132131670455
934214184154
1012103151917
115150a0619a
1224193a2a11
1311ab63cb6c
1482b5cd913
154ac849147
hex2d167712d

12103151917 has 8 divisors (see below), whose sum is σ = 12172561920. Its totient is φ = 12033898800.

The previous prime is 12103151911. The next prime is 12103151923. The reversal of 12103151917 is 71915130121.

It is an interprime number because it is at equal distance from previous prime (12103151911) and next prime (12103151923).

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

It is a cyclic number.

It is not a de Polignac number, because 12103151917 - 23 = 12103151909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103151911) 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, 117292 + ... + 194842.

It is an arithmetic number, because the mean of its divisors is an integer number (1521570240).

Almost surely, 212103151917 is an apocalyptic number.

It is an amenable number.

12103151917 is a deficient number, since it is larger than the sum of its proper divisors (69410003).

12103151917 is an equidigital number, since it uses as much as digits as its factorization.

12103151917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78443.

The product of its (nonzero) digits is 1890, while the sum is 31.

The spelling of 12103151917 in words is "twelve billion, one hundred three million, one hundred fifty-one thousand, nine hundred seventeen".

Divisors: 1 239 653 77551 156067 18534689 50640803 12103151917