Base | Representation |
---|---|
bin | 1010001101111010… |
… | …0011000001100011 |
3 | 21002010212021211210 |
4 | 2203132203001203 |
5 | 21104112201422 |
6 | 1132053241203 |
7 | 124652341245 |
oct | 24336430143 |
9 | 7063767753 |
10 | 2742693987 |
11 | 11881a7650 |
12 | 646633203 |
13 | 3492b4567 |
14 | 1c0388095 |
15 | 110bba10c |
hex | a37a3063 |
2742693987 has 8 divisors (see below), whose sum is σ = 3989373120. Its totient is φ = 1662238760.
The previous prime is 2742693923. The next prime is 2742694021. The reversal of 2742693987 is 7893962472.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2742693987 - 26 = 2742693923 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2742693917) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41555937 + ... + 41556002.
It is an arithmetic number, because the mean of its divisors is an integer number (498671640).
Almost surely, 22742693987 is an apocalyptic number.
2742693987 is a deficient number, since it is larger than the sum of its proper divisors (1246679133).
2742693987 is a wasteful number, since it uses less digits than its factorization.
2742693987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83111953.
The product of its digits is 9144576, while the sum is 57.
The square root of 2742693987 is about 52370.7359791707. The cubic root of 2742693987 is about 1399.7778536982. Note that the first 3 decimals are identical.
The spelling of 2742693987 in words is "two billion, seven hundred forty-two million, six hundred ninety-three thousand, nine hundred eighty-seven".
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