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152830225 = 526113209
BaseRepresentation
bin10010001110000…
…00000100010001
3101122120120122201
421013000010101
5303111031400
623055403201
73534015112
oct1107000421
9348516581
10152830225
11792a5679
1243223501
13258801b2
1416424209
15d63d06a
hex91c0111

152830225 has 6 divisors (see below), whose sum is σ = 189509510. Its totient is φ = 122264160.

The previous prime is 152830211. The next prime is 152830231. The reversal of 152830225 is 522038251.

It can be written as a sum of positive squares in 3 ways, for example, as 283024 + 152547201 = 532^2 + 12351^2 .

It is not a de Polignac number, because 152830225 - 211 = 152828177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 152830193 and 152830202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3056580 + ... + 3056629.

Almost surely, 2152830225 is an apocalyptic number.

It is an amenable number.

152830225 is a deficient number, since it is larger than the sum of its proper divisors (36679285).

152830225 is an equidigital number, since it uses as much as digits as its factorization.

152830225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6113219 (or 6113214 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 152830225 is about 12362.4522243768. The cubic root of 152830225 is about 534.6502211881.

Adding to 152830225 its reverse (522038251), we get a palindrome (674868476).

The spelling of 152830225 in words is "one hundred fifty-two million, eight hundred thirty thousand, two hundred twenty-five".

Divisors: 1 5 25 6113209 30566045 152830225