Search a number
-
+
23120147 = 37016247
BaseRepresentation
bin101100000110…
…0100100010011
31121111121212202
41120030210103
521404321042
62143313415
7400342451
oct130144423
947447782
1023120147
1112061566
1278ab86b
134a3667b
1430db9d1
15206a632
hex160c913

23120147 has 4 divisors (see below), whose sum is σ = 23130096. Its totient is φ = 23110200.

The previous prime is 23120039. The next prime is 23120171. The reversal of 23120147 is 74102132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23120147 - 210 = 23119123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120347) 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, 578 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (5782524).

Almost surely, 223120147 is an apocalyptic number.

23120147 is a deficient number, since it is larger than the sum of its proper divisors (9949).

23120147 is an equidigital number, since it uses as much as digits as its factorization.

23120147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9948.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 23120147 is about 4808.3413980291. The cubic root of 23120147 is about 284.8810296504.

Adding to 23120147 its reverse (74102132), we get a palindrome (97222279).

The spelling of 23120147 in words is "twenty-three million, one hundred twenty thousand, one hundred forty-seven".

Divisors: 1 3701 6247 23120147