Base | Representation |
---|---|
bin | 1011000110110110… |
… | …0001001001000000 |
3 | 21200210012212100210 |
4 | 2301231201021000 |
5 | 22101230440311 |
6 | 1211503514120 |
7 | 133612220145 |
oct | 26155411100 |
9 | 7623185323 |
10 | 2981499456 |
11 | 129aa84741 |
12 | 6b25b8940 |
13 | 386907780 |
14 | 203d8c3cc |
15 | 126b3c3a6 |
hex | b1b61240 |
2981499456 has 112 divisors (see below), whose sum is σ = 8942628800. Its totient is φ = 869087232.
The previous prime is 2981499439. The next prime is 2981499481. The reversal of 2981499456 is 6549941892.
It is a super-2 number, since 2×29814994562 = 17778678012256591872, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (57).
It is a junction number, because it is equal to n+sod(n) for n = 2981499396 and 2981499405.
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, 15990 + ... + 78858.
It is an arithmetic number, because the mean of its divisors is an integer number (79844900).
Almost surely, 22981499456 is an apocalyptic number.
2981499456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2981499456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4471314400).
2981499456 is an abundant number, since it is smaller than the sum of its proper divisors (5961129344).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2981499456 is a wasteful number, since it uses less digits than its factorization.
2981499456 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62916 (or 62906 counting only the distinct ones).
The product of its digits is 5598720, while the sum is 57.
The square root of 2981499456 is about 54603.1084829426. The cubic root of 2981499456 is about 1439.2787437412.
The spelling of 2981499456 in words is "two billion, nine hundred eighty-one million, four hundred ninety-nine thousand, four hundred fifty-six".
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