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152351545 = 530470309
BaseRepresentation
bin10010001010010…
…11001100111001
3101121200021000211
421011023030321
5303000222140
623041231121
73526652413
oct1105131471
9347607024
10152351545
1178aa8a75
12430324a1
1325743358
141633b9b3
15d5962ea
hex914b339

152351545 has 4 divisors (see below), whose sum is σ = 182821860. Its totient is φ = 121881232.

The previous prime is 152351527. The next prime is 152351561. The reversal of 152351545 is 545153251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545153251 = 4397123983.

It can be written as a sum of positive squares in 2 ways, for example, as 42458256 + 109893289 = 6516^2 + 10483^2 .

It is a cyclic number.

It is not a de Polignac number, because 152351545 - 29 = 152351033 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15235150 + ... + 15235159.

It is an arithmetic number, because the mean of its divisors is an integer number (45705465).

Almost surely, 2152351545 is an apocalyptic number.

It is an amenable number.

152351545 is a deficient number, since it is larger than the sum of its proper divisors (30470315).

152351545 is an equidigital number, since it uses as much as digits as its factorization.

152351545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30470314.

The product of its digits is 15000, while the sum is 31.

The square root of 152351545 is about 12343.0768044277. The cubic root of 152351545 is about 534.0914442191.

The spelling of 152351545 in words is "one hundred fifty-two million, three hundred fifty-one thousand, five hundred forty-five".

Divisors: 1 5 30470309 152351545