Base | Representation |
---|---|
bin | 111011110101001… |
… | …1010100001111101 |
3 | 12011220200000122102 |
4 | 1313222122201331 |
5 | 13102421414141 |
6 | 531113554445 |
7 | 100515244601 |
oct | 16752324175 |
9 | 5156600572 |
10 | 2007607421 |
11 | 940273196 |
12 | 480415a25 |
13 | 25cc0bbb1 |
14 | 1508b9501 |
15 | bb3b699b |
hex | 77a9a87d |
2007607421 has 4 divisors (see below), whose sum is σ = 2007716700. Its totient is φ = 2007498144.
The previous prime is 2007607411. The next prime is 2007607439. The reversal of 2007607421 is 1247067002.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.
It can be written as a sum of positive squares in 2 ways, for example, as 316341796 + 1691265625 = 17786^2 + 41125^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2007607421 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2007607411) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19586 + ... + 66323.
It is an arithmetic number, because the mean of its divisors is an integer number (501929175).
Almost surely, 22007607421 is an apocalyptic number.
It is an amenable number.
2007607421 is a deficient number, since it is larger than the sum of its proper divisors (109279).
2007607421 is an equidigital number, since it uses as much as digits as its factorization.
2007607421 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 109278.
The product of its (nonzero) digits is 4704, while the sum is 29.
The square root of 2007607421 is about 44806.3323761274. The cubic root of 2007607421 is about 1261.5164870500.
The spelling of 2007607421 in words is "two billion, seven million, six hundred seven thousand, four hundred twenty-one".
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