Base | Representation |
---|---|
bin | 110111001011… |
… | …1010010111110 |
3 | 2000102212020020 |
4 | 1232113102332 |
5 | 24401300022 |
6 | 2512033010 |
7 | 500624463 |
oct | 156272276 |
9 | 60385206 |
10 | 28931262 |
11 | 15370538 |
12 | 9832766 |
13 | 5cbc6b9 |
14 | 3bb166a |
15 | 281735c |
hex | 1b974be |
28931262 has 40 divisors (see below), whose sum is σ = 62727816. Its totient is φ = 8889264.
The previous prime is 28931257. The next prime is 28931267. The reversal of 28931262 is 26213982.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (28931257) and next prime (28931267).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28931267) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 781908 + ... + 781944.
Almost surely, 228931262 is an apocalyptic number.
28931262 is an abundant number, since it is smaller than the sum of its proper divisors (33796554).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28931262 is an frugal number, since it uses more digits than its factorization.
28931262 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 118 (or 61 counting only the distinct ones).
The product of its digits is 10368, while the sum is 33.
The square root of 28931262 is about 5378.7788576962. The cubic root of 28931262 is about 306.9887492473.
The spelling of 28931262 in words is "twenty-eight million, nine hundred thirty-one thousand, two hundred sixty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •