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150109705 = 530021941
BaseRepresentation
bin10001111001001…
…11111000001001
3101110110100210201
420330213320021
5301412002310
622521212201
73501624424
oct1074477011
9343410721
10150109705
1177807709
1242331061
1325139b15
1415d169bb
15d2a1e3a
hex8f27e09

150109705 has 4 divisors (see below), whose sum is σ = 180131652. Its totient is φ = 120087760.

The previous prime is 150109697. The next prime is 150109721. The reversal of 150109705 is 507901051.

150109705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 118984464 + 31125241 = 10908^2 + 5579^2 .

It is not a de Polignac number, because 150109705 - 23 = 150109697 is a prime.

It is a Duffinian 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, 15010966 + ... + 15010975.

It is an arithmetic number, because the mean of its divisors is an integer number (45032913).

Almost surely, 2150109705 is an apocalyptic number.

It is an amenable number.

150109705 is a deficient number, since it is larger than the sum of its proper divisors (30021947).

150109705 is an equidigital number, since it uses as much as digits as its factorization.

150109705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30021946.

The product of its (nonzero) digits is 1575, while the sum is 28.

The square root of 150109705 is about 12251.9265831950. The cubic root of 150109705 is about 531.4587852015.

The spelling of 150109705 in words is "one hundred fifty million, one hundred nine thousand, seven hundred five".

Divisors: 1 5 30021941 150109705