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150151231 = 647232073
BaseRepresentation
bin10001111001100…
…10000000111111
3101110112110202201
420330302000333
5301414314411
622522132331
73502156456
oct1074620077
9343473681
10150151231
117783592a
12423510a7
13251529a9
1415d27b9d
15d2ae3c1
hex8f3203f

150151231 has 4 divisors (see below), whose sum is σ = 150383952. Its totient is φ = 149918512.

The previous prime is 150151223. The next prime is 150151249. The reversal of 150151231 is 132151051.

150151231 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, and also an emirpimes, since its reverse is a distinct semiprime: 132151051 = 598722073.

It is a cyclic number.

It is not a de Polignac number, because 150151231 - 23 = 150151223 is a prime.

It is a super-2 number, since 2×1501512312 = 45090784341630722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150151199 and 150151208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150151201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115390 + ... + 116683.

It is an arithmetic number, because the mean of its divisors is an integer number (37595988).

Almost surely, 2150151231 is an apocalyptic number.

150151231 is a deficient number, since it is larger than the sum of its proper divisors (232721).

150151231 is an equidigital number, since it uses as much as digits as its factorization.

150151231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232720.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 150151231 is about 12253.6211382595. The cubic root of 150151231 is about 531.5077878577.

The spelling of 150151231 in words is "one hundred fifty million, one hundred fifty-one thousand, two hundred thirty-one".

Divisors: 1 647 232073 150151231