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152007949 = 223967891
BaseRepresentation
bin10010000111101…
…11010100001101
3101121000210201001
421003313110031
5302403223244
623030020301
73524021602
oct1103672415
9347023631
10152007949
1178893905
1242aa7691
1325652b42
141628c6a9
15d5295d4
hex90f750d

152007949 has 4 divisors (see below), whose sum is σ = 152078080. Its totient is φ = 151937820.

The previous prime is 152007907. The next prime is 152007971. The reversal of 152007949 is 949700251.

152007949 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 949700251 = 1138404427.

It is a cyclic number.

It is not a de Polignac number, because 152007949 - 215 = 151975181 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 (152007979) 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, 31707 + ... + 36184.

It is an arithmetic number, because the mean of its divisors is an integer number (38019520).

Almost surely, 2152007949 is an apocalyptic number.

It is an amenable number.

152007949 is a deficient number, since it is larger than the sum of its proper divisors (70131).

152007949 is an equidigital number, since it uses as much as digits as its factorization.

152007949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70130.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 152007949 is about 12329.1503762425. The cubic root of 152007949 is about 533.6896327071.

The spelling of 152007949 in words is "one hundred fifty-two million, seven thousand, nine hundred forty-nine".

Divisors: 1 2239 67891 152007949