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152020147 = 191795917
BaseRepresentation
bin10010000111110…
…10010010110011
3101121001102102211
421003322102303
5302404121042
623030152551
73524102266
oct1103722263
9347042384
10152020147
11788a1a94
1242ab2757
1325658566
1416292cdd
15d52d017
hex90fa4b3

152020147 has 4 divisors (see below), whose sum is σ = 152816256. Its totient is φ = 151224040.

The previous prime is 152020139. The next prime is 152020163. The reversal of 152020147 is 741020251.

It is a happy number.

152020147 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 is a cyclic number.

It is not a de Polignac number, because 152020147 - 23 = 152020139 is a prime.

It is a super-2 number, since 2×1520201472 = 46220250187803218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152020177) 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, 397768 + ... + 398149.

It is an arithmetic number, because the mean of its divisors is an integer number (38204064).

Almost surely, 2152020147 is an apocalyptic number.

152020147 is a deficient number, since it is larger than the sum of its proper divisors (796109).

152020147 is an equidigital number, since it uses as much as digits as its factorization.

152020147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796108.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 152020147 is about 12329.6450476078. The cubic root of 152020147 is about 533.7039077764.

Adding to 152020147 its reverse (741020251), we get a palindrome (893040398).

The spelling of 152020147 in words is "one hundred fifty-two million, twenty thousand, one hundred forty-seven".

Divisors: 1 191 795917 152020147