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150138789 = 379633497
BaseRepresentation
bin10001111001011…
…10111110100101
3101110111211200220
420330232332211
5301413420124
622521554553
73502105263
oct1074567645
9343454626
10150138789
1177827549
1242345a59
132514a128
1415d23433
15d2aa879
hex8f2efa5

150138789 has 8 divisors (see below), whose sum is σ = 202719360. Its totient is φ = 98825376.

The previous prime is 150138787. The next prime is 150138799. The reversal of 150138789 is 987831051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 150138789 - 21 = 150138787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 150138789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150138787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316512 + ... + 316985.

It is an arithmetic number, because the mean of its divisors is an integer number (25339920).

Almost surely, 2150138789 is an apocalyptic number.

It is an amenable number.

150138789 is a deficient number, since it is larger than the sum of its proper divisors (52580571).

150138789 is an equidigital number, since it uses as much as digits as its factorization.

150138789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633579.

The product of its (nonzero) digits is 60480, while the sum is 42.

The square root of 150138789 is about 12253.1134410810. The cubic root of 150138789 is about 531.4931066536.

The spelling of 150138789 in words is "one hundred fifty million, one hundred thirty-eight thousand, seven hundred eighty-nine".

Divisors: 1 3 79 237 633497 1900491 50046263 150138789