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152312245 = 530462449
BaseRepresentation
bin10010001010000…
…01100110110101
3101121121021010021
421011001212311
5302442442440
623040325141
73526430011
oct1105014665
9347537107
10152312245
1178a81498
12430137b1
132572b4b7
141632b541
15d58984a
hex91419b5

152312245 has 4 divisors (see below), whose sum is σ = 182774700. Its totient is φ = 121849792.

The previous prime is 152312219. The next prime is 152312267. The reversal of 152312245 is 542213251.

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 45995524 + 106316721 = 6782^2 + 10311^2 .

It is a cyclic number.

It is not a de Polignac number, because 152312245 - 27 = 152312117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15231220 + ... + 15231229.

It is an arithmetic number, because the mean of its divisors is an integer number (45693675).

Almost surely, 2152312245 is an apocalyptic number.

It is an amenable number.

152312245 is a deficient number, since it is larger than the sum of its proper divisors (30462455).

152312245 is an equidigital number, since it uses as much as digits as its factorization.

152312245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30462454.

The product of its digits is 2400, while the sum is 25.

The square root of 152312245 is about 12341.4847161920. The cubic root of 152312245 is about 534.0455162332.

Adding to 152312245 its reverse (542213251), we get a palindrome (694525496).

The spelling of 152312245 in words is "one hundred fifty-two million, three hundred twelve thousand, two hundred forty-five".

Divisors: 1 5 30462449 152312245