Base | Representation |
---|---|
bin | 110110010101… |
… | …1101011111111 |
3 | 1222121110121112 |
4 | 1230223223333 |
5 | 24243143440 |
6 | 2454352235 |
7 | 464110445 |
oct | 154535377 |
9 | 58543545 |
10 | 28490495 |
11 | 1509a370 |
12 | 965b67b |
13 | 5b96ba7 |
14 | 3ad8b95 |
15 | 277b965 |
hex | 1b2baff |
28490495 has 16 divisors (see below), whose sum is σ = 37404288. Its totient is φ = 20660640.
The previous prime is 28490489. The next prime is 28490509. The reversal of 28490495 is 59409482.
It is not a de Polignac number, because 28490495 - 28 = 28490239 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29612 + ... + 30558.
It is an arithmetic number, because the mean of its divisors is an integer number (2337768).
Almost surely, 228490495 is an apocalyptic number.
28490495 is a deficient number, since it is larger than the sum of its proper divisors (8913793).
28490495 is a wasteful number, since it uses less digits than its factorization.
28490495 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1510.
The product of its (nonzero) digits is 103680, while the sum is 41.
The square root of 28490495 is about 5337.6488269649. The cubic root of 28490495 is about 305.4217760495.
The spelling of 28490495 in words is "twenty-eight million, four hundred ninety thousand, four hundred ninety-five".
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