Search a number
-
+
150943989 = 3712315839
BaseRepresentation
bin10001111111100…
…11100011110101
3101112000202020010
420333303203311
5302120201424
622551130433
73512000640
oct1077634365
9345022203
10150943989
11782274a9
1242673a19
132536c791
1416092a57
15d3b9229
hex8ff38f5

150943989 has 16 divisors (see below), whose sum is σ = 230236160. Its totient is φ = 86168880.

The previous prime is 150943987. The next prime is 150944023. The reversal of 150943989 is 989349051.

It is not a de Polignac number, because 150943989 - 21 = 150943987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150943981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22932 + ... + 28770.

It is an arithmetic number, because the mean of its divisors is an integer number (14389760).

Almost surely, 2150943989 is an apocalyptic number.

It is an amenable number.

150943989 is a deficient number, since it is larger than the sum of its proper divisors (79292171).

150943989 is a wasteful number, since it uses less digits than its factorization.

150943989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 150943989 is about 12285.9264607924. The cubic root of 150943989 is about 532.4415523586.

The spelling of 150943989 in words is "one hundred fifty million, nine hundred forty-three thousand, nine hundred eighty-nine".

Divisors: 1 3 7 21 1231 3693 5839 8617 17517 25851 40873 122619 7187809 21563427 50314663 150943989