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150038669 = 1121239989
BaseRepresentation
bin10001111000101…
…10100010001101
3101110022202100202
420330112202031
5301402214134
622515503245
73501210344
oct1074264215
9343282322
10150038669
1177769300
12422b7b25
13251136a1
1415cd8b5b
15d28ad7e
hex8f1688d

150038669 has 6 divisors (see below), whose sum is σ = 164918670. Its totient is φ = 136398680.

The previous prime is 150038657. The next prime is 150038671. The reversal of 150038669 is 966830051.

150038669 = 10532 + 10542 + ... + 11732.

It can be written as a sum of positive squares in only one way, i.e., 124657225 + 25381444 = 11165^2 + 5038^2 .

It is a de Polignac number, because none of the positive numbers 2k-150038669 is a prime.

It is a super-2 number, since 2×1500386692 = 45023204390583122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150038569) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 619874 + ... + 620115.

It is an arithmetic number, because the mean of its divisors is an integer number (27486445).

Almost surely, 2150038669 is an apocalyptic number.

It is an amenable number.

150038669 is a deficient number, since it is larger than the sum of its proper divisors (14880001).

150038669 is a wasteful number, since it uses less digits than its factorization.

150038669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240011 (or 1240000 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 150038669 is about 12249.0272675017. The cubic root of 150038669 is about 531.3749383842.

The spelling of 150038669 in words is "one hundred fifty million, thirty-eight thousand, six hundred sixty-nine".

Divisors: 1 11 121 1239989 13639879 150038669