Base | Representation |
---|---|
bin | 111010011110001… |
… | …110000000100110 |
3 | 2112100220222022212 |
4 | 322132032000212 |
5 | 4002114001410 |
6 | 241202123422 |
7 | 33211235660 |
oct | 7236160046 |
9 | 2470828285 |
10 | 981000230 |
11 | 463826aa1 |
12 | 234650572 |
13 | 128317112 |
14 | 94403530 |
15 | 5b1cbb05 |
hex | 3a78e026 |
981000230 has 32 divisors (see below), whose sum is σ = 2023923456. Its totient is φ = 335365344.
The previous prime is 981000211. The next prime is 981000259. The reversal of 981000230 is 32000189.
It is a super-2 number, since 2×9810002302 = 1924722902520105800, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 981000196 and 981000205.
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, 4097 + ... + 44483.
It is an arithmetic number, because the mean of its divisors is an integer number (63247608).
Almost surely, 2981000230 is an apocalyptic number.
981000230 is an abundant number, since it is smaller than the sum of its proper divisors (1042923226).
981000230 is a wasteful number, since it uses less digits than its factorization.
981000230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40748.
The product of its (nonzero) digits is 432, while the sum is 23.
The square root of 981000230 is about 31320.9231983989. The cubic root of 981000230 is about 993.6262043751.
The spelling of 981000230 in words is "nine hundred eighty-one million, two hundred thirty", and thus it is an aban number.
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