Base | Representation |
---|---|
bin | 11010111100110100… |
… | …011000111110000000 |
3 | 2202200201022010211022 |
4 | 122330310120332000 |
5 | 433231014413034 |
6 | 21143242205012 |
7 | 2043050000420 |
oct | 327464307600 |
9 | 82621263738 |
10 | 28937654144 |
11 | 112aa607953 |
12 | 57371b3768 |
13 | 2962269299 |
14 | 158730c480 |
15 | b4572eb2e |
hex | 6bcd18f80 |
28937654144 has 48 divisors (see below), whose sum is σ = 65896432920. Its totient is φ = 12399669504.
The previous prime is 28937654129. The next prime is 28937654149. The reversal of 28937654144 is 44145673982.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28937654149) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5089127 + ... + 5094809.
Almost surely, 228937654144 is an apocalyptic number.
It is an amenable number.
28937654144 is an abundant number, since it is smaller than the sum of its proper divisors (36958778776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28937654144 is an frugal number, since it uses more digits than its factorization.
28937654144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 11387 (or 5692 counting only the distinct ones).
The product of its digits is 5806080, while the sum is 53.
The spelling of 28937654144 in words is "twenty-eight billion, nine hundred thirty-seven million, six hundred fifty-four thousand, one hundred forty-four".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •