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152152405 = 530430481
BaseRepresentation
bin10010001000110…
…10100101010101
3101121022010212021
421010122211111
5302422334110
623033053141
73525163006
oct1104324525
9347263767
10152152405
1178982399
1242b571b1
13256a3812
14162c91ad
15d5572da
hex911a955

152152405 has 4 divisors (see below), whose sum is σ = 182582892. Its totient is φ = 121721920.

The previous prime is 152152391. The next prime is 152152411. The reversal of 152152405 is 504251251.

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 120275089 + 31877316 = 10967^2 + 5646^2 .

It is not a de Polignac number, because 152152405 - 25 = 152152373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152152405.

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, 15215236 + ... + 15215245.

It is an arithmetic number, because the mean of its divisors is an integer number (45645723).

Almost surely, 2152152405 is an apocalyptic number.

It is an amenable number.

152152405 is a deficient number, since it is larger than the sum of its proper divisors (30430487).

152152405 is an equidigital number, since it uses as much as digits as its factorization.

152152405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30430486.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 152152405 is about 12335.0072963092. The cubic root of 152152405 is about 533.8586375990.

The spelling of 152152405 in words is "one hundred fifty-two million, one hundred fifty-two thousand, four hundred five".

Divisors: 1 5 30430481 152152405