Base | Representation |
---|---|
bin | 100000001110101… |
… | …1110100001000110 |
3 | 2210100222022120100 |
4 | 1000131132201012 |
5 | 4203324001443 |
6 | 255151344530 |
7 | 35541222561 |
oct | 10035364106 |
9 | 2710868510 |
10 | 1081468998 |
11 | 505508735 |
12 | 262222146 |
13 | 1430930ac |
14 | a38b74d8 |
15 | 64e253d3 |
hex | 4075e846 |
1081468998 has 12 divisors (see below), whose sum is σ = 2343182868. Its totient is φ = 360489660.
The previous prime is 1081468987. The next prime is 1081469003. The reversal of 1081468998 is 8998641801.
1081468998 is a `hidden beast` number, since 10 + 81 + 468 + 9 + 98 = 666.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30040788 + ... + 30040823.
It is an arithmetic number, because the mean of its divisors is an integer number (195265239).
Almost surely, 21081468998 is an apocalyptic number.
1081468998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
1081468998 is an abundant number, since it is smaller than the sum of its proper divisors (1261713870).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1081468998 is a wasteful number, since it uses less digits than its factorization.
1081468998 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 60081619 (or 60081616 counting only the distinct ones).
The product of its (nonzero) digits is 995328, while the sum is 54.
The square root of 1081468998 is about 32885.6959482387. The cubic root of 1081468998 is about 1026.4505334136.
The spelling of 1081468998 in words is "one billion, eighty-one million, four hundred sixty-eight thousand, nine hundred ninety-eight".
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