Base | Representation |
---|---|
bin | 1011001001001001… |
… | …0000011100100001 |
3 | 21201110100011112110 |
4 | 2302102100130201 |
5 | 22111212133101 |
6 | 1212450145533 |
7 | 134060121540 |
oct | 26222203441 |
9 | 7643304473 |
10 | 2991130401 |
11 | 12a54625a6 |
12 | 6b58822a9 |
13 | 3888ca35c |
14 | 205378157 |
15 | 1278e0cd6 |
hex | b2490721 |
2991130401 has 16 divisors (see below), whose sum is σ = 4561458048. Its totient is φ = 1707888000.
The previous prime is 2991130369. The next prime is 2991130421. The reversal of 2991130401 is 1040311992.
It is not a de Polignac number, because 2991130401 - 25 = 2991130369 is a prime.
It is a super-2 number, since 2×29911304012 = 17893722151572841602, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2991130421) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27420 + ... + 82061.
It is an arithmetic number, because the mean of its divisors is an integer number (285091128).
Almost surely, 22991130401 is an apocalyptic number.
2991130401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
It is an amenable number.
2991130401 is a deficient number, since it is larger than the sum of its proper divisors (1570327647).
2991130401 is a wasteful number, since it uses less digits than its factorization.
2991130401 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 110792.
The product of its (nonzero) digits is 1944, while the sum is 30.
The square root of 2991130401 is about 54691.2278249447. The cubic root of 2991130401 is about 1440.8268144270.
The spelling of 2991130401 in words is "two billion, nine hundred ninety-one million, one hundred thirty thousand, four hundred one".
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