Base | Representation |
---|---|
bin | 10001111000010… |
… | …00010000000000 |
3 | 101110012210002202 |
4 | 20330020100000 |
5 | 301343331120 |
6 | 22514332332 |
7 | 3500544641 |
oct | 1074102000 |
9 | 343183082 |
10 | 149980160 |
11 | 77729350 |
12 | 4228a0a8 |
13 | 250c2b75 |
14 | 15cc16c8 |
15 | d278875 |
hex | 8f08400 |
149980160 has 88 divisors (see below), whose sum is σ = 392630976. Its totient is φ = 54517760.
The previous prime is 149980147. The next prime is 149980177. The reversal of 149980160 is 61089941.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (88).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54989 + ... + 57651.
Almost surely, 2149980160 is an apocalyptic number.
149980160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 149980160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196315488).
149980160 is an abundant number, since it is smaller than the sum of its proper divisors (242650816).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
149980160 is a wasteful number, since it uses less digits than its factorization.
149980160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2699 (or 2681 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 38.
The square root of 149980160 is about 12246.6387225230. The cubic root of 149980160 is about 531.3058578406.
The spelling of 149980160 in words is "one hundred forty-nine million, nine hundred eighty thousand, one hundred sixty".
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