| Base | Representation |
|---|---|
| bin | 10001110111010… |
| … | …00110100110000 |
| 3 | 101102222020112100 |
| 4 | 20323220310300 |
| 5 | 301330221230 |
| 6 | 22511500400 |
| 7 | 3466500444 |
| oct | 1073506460 |
| 9 | 342866470 |
| 10 | 149851440 |
| 11 | 77650672 |
| 12 | 42227700 |
| 13 | 250793bb |
| 14 | 15c8a824 |
| 15 | d250660 |
| hex | 8ee8d30 |
149851440 has 120 divisors (see below), whose sum is σ = 525189600. Its totient is φ = 38218752.
The previous prime is 149851397. The next prime is 149851451. The reversal of 149851440 is 44158941.
149851440 is a `hidden beast` number, since 14 + 98 + 514 + 40 = 666.
149851440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (120).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 149851395 and 149851404.
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 12036 + ... + 21084.
It is an arithmetic number, because the mean of its divisors is an integer number (4376580).
Almost surely, 2149851440 is an apocalyptic number.
149851440 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 149851440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262594800).
149851440 is an abundant number, since it is smaller than the sum of its proper divisors (375338160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
149851440 is a wasteful number, since it uses less digits than its factorization.
149851440 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9091 (or 9082 counting only the distinct ones).
The product of its (nonzero) digits is 23040, while the sum is 36.
The square root of 149851440 is about 12241.3822748904. The cubic root of 149851440 is about 531.1538171431.
The spelling of 149851440 in words is "one hundred forty-nine million, eight hundred fifty-one thousand, four hundred forty".
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