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150239231 = 181830051
BaseRepresentation
bin10001111010001…
…11011111111111
3101110200221110222
420331013133333
5301430123411
622524051555
73503004152
oct1075073777
9343627428
10150239231
1177895a5a
1242393bbb
1325183a6c
1415d4bc99
15d2ca4db
hex8f477ff

150239231 has 4 divisors (see below), whose sum is σ = 151069464. Its totient is φ = 149409000.

The previous prime is 150239171. The next prime is 150239239. The reversal of 150239231 is 132932051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 150239231 - 214 = 150222847 is a prime.

It is a super-2 number, since 2×1502392312 = 45143653062942722, which contains 22 as substring.

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 150239231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150239239) 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, 414845 + ... + 415206.

It is an arithmetic number, because the mean of its divisors is an integer number (37767366).

Almost surely, 2150239231 is an apocalyptic number.

150239231 is a deficient number, since it is larger than the sum of its proper divisors (830233).

150239231 is an equidigital number, since it uses as much as digits as its factorization.

150239231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830232.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 150239231 is about 12257.2113875873. The cubic root of 150239231 is about 531.6116021933.

The spelling of 150239231 in words is "one hundred fifty million, two hundred thirty-nine thousand, two hundred thirty-one".

Divisors: 1 181 830051 150239231