Base | Representation |
---|---|
bin | 10001110011110… |
… | …11000010000001 |
3 | 101102010101122101 |
4 | 20321323002001 |
5 | 301221323404 |
6 | 22454110401 |
7 | 3462615361 |
oct | 1071730201 |
9 | 342111571 |
10 | 149401729 |
11 | 77373804 |
12 | 4204b401 |
13 | 24c4c7b9 |
14 | 15bb09a1 |
15 | d1b22a4 |
hex | 8e7b081 |
149401729 has 9 divisors (see below), whose sum is σ = 158928067. Its totient is φ = 140417824.
The previous prime is 149401723. The next prime is 149401739. The reversal of 149401729 is 927104941.
The square root of 149401729 is 12223.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 116316225 + 33085504 = 10785^2 + 5752^2 .
It is not a de Polignac number, because 149401729 - 217 = 149270657 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (149401723) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 207432 + ... + 208150.
Almost surely, 2149401729 is an apocalyptic number.
149401729 is the 12223-rd square number.
149401729 is the 6112-nd centered octagonal number.
It is an amenable number.
149401729 is a deficient number, since it is larger than the sum of its proper divisors (9526338).
149401729 is an frugal number, since it uses more digits than its factorization.
149401729 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1472 (or 736 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 37.
The cubic root of 149401729 is about 530.6219457946.
The spelling of 149401729 in words is "one hundred forty-nine million, four hundred one thousand, seven hundred twenty-nine".
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