Base | Representation |
---|---|
bin | 1011010000011101000101 |
3 | 12112220222121 |
4 | 23100131011 |
5 | 1223412411 |
6 | 143125541 |
7 | 34040305 |
oct | 13203505 |
9 | 5486877 |
10 | 2950981 |
11 | 1736130 |
12 | ba38b1 |
13 | 7c4257 |
14 | 56b605 |
15 | 3d4571 |
hex | 2d0745 |
2950981 has 4 divisors (see below), whose sum is σ = 3219264. Its totient is φ = 2682700.
The previous prime is 2950963. The next prime is 2950991. The reversal of 2950981 is 1890592.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 2950981 - 25 = 2950949 is a prime.
It is a super-2 number, since 2×29509812 = 17416577724722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2950931) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134125 + ... + 134146.
It is an arithmetic number, because the mean of its divisors is an integer number (804816).
22950981 is an apocalyptic number.
It is an amenable number.
2950981 is a deficient number, since it is larger than the sum of its proper divisors (268283).
2950981 is a wasteful number, since it uses less digits than its factorization.
2950981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 268282.
The product of its (nonzero) digits is 6480, while the sum is 34.
The square root of 2950981 is about 1717.8419601349. The cubic root of 2950981 is about 143.4351100951.
The spelling of 2950981 in words is "two million, nine hundred fifty thousand, nine hundred eighty-one".
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