Base | Representation |
---|---|
bin | 1010111010100100… |
… | …1001000110110111 |
3 | 21120012100110220120 |
4 | 2232221021012313 |
5 | 22000041131131 |
6 | 1202424303023 |
7 | 132415523445 |
oct | 25651110667 |
9 | 7505313816 |
10 | 2930020791 |
11 | 1273a13a95 |
12 | 699311a73 |
13 | 379052319 |
14 | 1db1cbb95 |
15 | 12236e496 |
hex | aea491b7 |
2930020791 has 8 divisors (see below), whose sum is σ = 3906951024. Its totient is φ = 1953218880.
The previous prime is 2930020789. The next prime is 2930020811. The reversal of 2930020791 is 1970200392.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2930020791 - 21 = 2930020789 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2930020721) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54865 + ... + 94181.
It is an arithmetic number, because the mean of its divisors is an integer number (488368878).
Almost surely, 22930020791 is an apocalyptic number.
2930020791 is a deficient number, since it is larger than the sum of its proper divisors (976930233).
2930020791 is a wasteful number, since it uses less digits than its factorization.
2930020791 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 64161.
The product of its (nonzero) digits is 6804, while the sum is 33.
The square root of 2930020791 is about 54129.6664593456. Note that the first 3 decimals coincide. The cubic root of 2930020791 is about 1430.9470621766.
The spelling of 2930020791 in words is "two billion, nine hundred thirty million, twenty thousand, seven hundred ninety-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •