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150757405 = 530151481
BaseRepresentation
bin10001111110001…
…10000000011101
3101111200021021121
420333012000131
5302043214110
622543130541
73510262651
oct1077060035
9344607247
10150757405
117810a2a7
12425a3a51
1325305886
1416044a61
15d37dcda
hex8fc601d

150757405 has 4 divisors (see below), whose sum is σ = 180908892. Its totient is φ = 120605920.

The previous prime is 150757391. The next prime is 150757421. The reversal of 150757405 is 504757051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504757051 = 3907129193.

It can be written as a sum of positive squares in 2 ways, for example, as 120165444 + 30591961 = 10962^2 + 5531^2 .

It is not a de Polignac number, because 150757405 - 213 = 150749213 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, 15075736 + ... + 15075745.

It is an arithmetic number, because the mean of its divisors is an integer number (45227223).

Almost surely, 2150757405 is an apocalyptic number.

It is an amenable number.

150757405 is a deficient number, since it is larger than the sum of its proper divisors (30151487).

150757405 is an equidigital number, since it uses as much as digits as its factorization.

150757405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30151486.

The product of its (nonzero) digits is 24500, while the sum is 34.

The square root of 150757405 is about 12278.3307090174. The cubic root of 150757405 is about 532.2220757228. Note that the first 3 decimals are identical.

The spelling of 150757405 in words is "one hundred fifty million, seven hundred fifty-seven thousand, four hundred five".

Divisors: 1 5 30151481 150757405