Base | Representation |
---|---|
bin | 111110001000101… |
… | …0010100111011001 |
3 | 12101022010021101121 |
4 | 1330101102213121 |
5 | 13232214014411 |
6 | 542514445241 |
7 | 102444264316 |
oct | 17421224731 |
9 | 5338107347 |
10 | 2084907481 |
11 | 97a96a938 |
12 | 4a2293821 |
13 | 272c35387 |
14 | 15ac7bd0d |
15 | c3085571 |
hex | 7c4529d9 |
2084907481 has 4 divisors (see below), whose sum is σ = 2124245412. Its totient is φ = 2045569552.
The previous prime is 2084907463. The next prime is 2084907493. The reversal of 2084907481 is 1847094802.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 1648766025 + 436141456 = 40605^2 + 20884^2 .
It is a cyclic number.
It is not a de Polignac number, because 2084907481 - 217 = 2084776409 is a prime.
It is a super-2 number, since 2×20849074812 = 8693678408659530722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2084907581) 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, 19668886 + ... + 19668991.
It is an arithmetic number, because the mean of its divisors is an integer number (531061353).
Almost surely, 22084907481 is an apocalyptic number.
It is an amenable number.
2084907481 is a deficient number, since it is larger than the sum of its proper divisors (39337931).
2084907481 is an equidigital number, since it uses as much as digits as its factorization.
2084907481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 39337930.
The product of its (nonzero) digits is 129024, while the sum is 43.
The square root of 2084907481 is about 45660.7871263735. The cubic root of 2084907481 is about 1277.5039821261.
The spelling of 2084907481 in words is "two billion, eighty-four million, nine hundred seven thousand, four hundred eighty-one".
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