Search a number
-
+
152125261 = 349435889
BaseRepresentation
bin10010001000100…
…11111101001101
3101121020202121221
421010103331031
5302421002021
623032323341
73525020611
oct1104237515
9347222557
10152125261
1178963a62
1242b43551
1325694362
14162bd341
15d54e241
hex9113f4d

152125261 has 4 divisors (see below), whose sum is σ = 152561500. Its totient is φ = 151689024.

The previous prime is 152125189. The next prime is 152125319. The reversal of 152125261 is 162521251.

152125261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139122025 + 13003236 = 11795^2 + 3606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-152125261 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 (152125361) 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, 217596 + ... + 218293.

It is an arithmetic number, because the mean of its divisors is an integer number (38140375).

Almost surely, 2152125261 is an apocalyptic number.

It is an amenable number.

152125261 is a deficient number, since it is larger than the sum of its proper divisors (436239).

152125261 is an equidigital number, since it uses as much as digits as its factorization.

152125261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436238.

The product of its digits is 1200, while the sum is 25.

The square root of 152125261 is about 12333.9069641375. The cubic root of 152125261 is about 533.8268889045.

The spelling of 152125261 in words is "one hundred fifty-two million, one hundred twenty-five thousand, two hundred sixty-one".

Divisors: 1 349 435889 152125261