Base | Representation |
---|---|
bin | 1011010101010101100101 |
3 | 12120221102100 |
4 | 23111111211 |
5 | 1230032411 |
6 | 143402313 |
7 | 34152516 |
oct | 13252545 |
9 | 5527370 |
10 | 2970981 |
11 | 174a162 |
12 | bb3399 |
13 | 8003a0 |
14 | 574a0d |
15 | 3da456 |
hex | 2d5565 |
2970981 has 24 divisors (see below), whose sum is σ = 4702880. Its totient is φ = 1796256.
The previous prime is 2970977. The next prime is 2970991. The reversal of 2970981 is 1890792.
It is a happy number.
It is not a de Polignac number, because 2970981 - 22 = 2970977 is a prime.
It is a super-2 number, since 2×29709812 = 17653456204722, which contains 22 as substring.
It is a zygodrome in base 12.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2970941) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7650 + ... + 8028.
22970981 is an apocalyptic number.
It is an amenable number.
2970981 is a deficient number, since it is larger than the sum of its proper divisors (1731899).
2970981 is a wasteful number, since it uses less digits than its factorization.
2970981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 465 (or 462 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 36.
The square root of 2970981 is about 1723.6533874303. The cubic root of 2970981 is about 143.7584201747.
The spelling of 2970981 in words is "two million, nine hundred seventy thousand, nine hundred eighty-one".
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