Base | Representation |
---|---|
bin | 10010111011010… |
… | …00011110001010 |
3 | 102001201222202001 |
4 | 21131220132022 |
5 | 311120403030 |
6 | 23430501214 |
7 | 3635314366 |
oct | 1135503612 |
9 | 361658661 |
10 | 158762890 |
11 | 81687a00 |
12 | 4520480a |
13 | 26b79650 |
14 | 1712a2a6 |
15 | de10cca |
hex | 976878a |
158762890 has 48 divisors (see below), whose sum is σ = 338310504. Its totient is φ = 53285760.
The previous prime is 158762839. The next prime is 158762897. The reversal of 158762890 is 98267851.
158762890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 99980001 + 58782889 = 9999^2 + 7667^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 158762890.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (158762897) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10684 + ... + 20776.
Almost surely, 2158762890 is an apocalyptic number.
158762890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
158762890 is an abundant number, since it is smaller than the sum of its proper divisors (179547614).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
158762890 is a wasteful number, since it uses less digits than its factorization.
158762890 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10135 (or 10124 counting only the distinct ones).
The product of its (nonzero) digits is 241920, while the sum is 46.
The square root of 158762890 is about 12600.1146820178. The cubic root of 158762890 is about 541.4807211324.
The spelling of 158762890 in words is "one hundred fifty-eight million, seven hundred sixty-two thousand, eight hundred ninety".
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