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152606605 = 530521321
BaseRepresentation
bin10010001100010…
…01011110001101
3101122011012220111
421012021132031
5303031402410
623050520021
73532064134
oct1106113615
9348135814
10152606605
1179162668
1243136011
1325802488
14163a691b
15d5e6b8a
hex918978d

152606605 has 4 divisors (see below), whose sum is σ = 183127932. Its totient is φ = 122085280.

The previous prime is 152606599. The next prime is 152606621. The reversal of 152606605 is 506606251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 506606251 = 4491128299.

It can be written as a sum of positive squares in 2 ways, for example, as 85710564 + 66896041 = 9258^2 + 8179^2 .

It is a de Polignac number, because none of the positive numbers 2k-152606605 is a prime.

It is a Duffinian number.

It is a congruent 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, 15260656 + ... + 15260665.

It is an arithmetic number, because the mean of its divisors is an integer number (45781983).

Almost surely, 2152606605 is an apocalyptic number.

It is an amenable number.

152606605 is a deficient number, since it is larger than the sum of its proper divisors (30521327).

152606605 is an equidigital number, since it uses as much as digits as its factorization.

152606605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30521326.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 152606605 is about 12353.4045914477. The cubic root of 152606605 is about 534.3893285489.

The spelling of 152606605 in words is "one hundred fifty-two million, six hundred six thousand, six hundred five".

Divisors: 1 5 30521321 152606605