Base | Representation |
---|---|
bin | 10001111000000… |
… | …11000001000000 |
3 | 101110011200200200 |
4 | 20330003001000 |
5 | 301342134340 |
6 | 22514045200 |
7 | 3500425302 |
oct | 1074030100 |
9 | 343150620 |
10 | 149958720 |
11 | 7771422a |
12 | 42279800 |
13 | 250b6192 |
14 | 15cb7972 |
15 | d272330 |
hex | 8f03040 |
149958720 has 84 divisors (see below), whose sum is σ = 515805420. Its totient is φ = 39988224.
The previous prime is 149958719. The next prime is 149958727. The reversal of 149958720 is 27859941.
149958720 is a `hidden beast` number, since 1 + 49 + 9 + 587 + 20 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 97772544 + 52186176 = 9888^2 + 7224^2 .
It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (149958727) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23155 + ... + 28914.
Almost surely, 2149958720 is an apocalyptic number.
149958720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
149958720 is an abundant number, since it is smaller than the sum of its proper divisors (365846700).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
149958720 is a wasteful number, since it uses less digits than its factorization.
149958720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52092 (or 52079 counting only the distinct ones).
The product of its (nonzero) digits is 181440, while the sum is 45.
The square root of 149958720 is about 12245.7633490118. The cubic root of 149958720 is about 531.2805395131.
The spelling of 149958720 in words is "one hundred forty-nine million, nine hundred fifty-eight thousand, seven hundred twenty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 1.014 sec. • engine limits •