Base | Representation |
---|---|
bin | 111011011101001… |
… | …1110110011010111 |
3 | 12011001000122010201 |
4 | 1312322132303113 |
5 | 13041212321012 |
6 | 525544401331 |
7 | 100303402000 |
oct | 16672366327 |
9 | 5131018121 |
10 | 1995042007 |
11 | 934170652 |
12 | 478176247 |
13 | 25a42c73a |
14 | 14cd681a7 |
15 | ba233857 |
hex | 76e9ecd7 |
1995042007 has 16 divisors (see below), whose sum is σ = 2347214400. Its totient is φ = 1694870016.
The previous prime is 1995041999. The next prime is 1995042013. The reversal of 1995042007 is 7002405991.
It is not a de Polignac number, because 1995042007 - 23 = 1995041999 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 (1995042407) 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, 13023 + ... + 64495.
It is an arithmetic number, because the mean of its divisors is an integer number (146700900).
Almost surely, 21995042007 is an apocalyptic number.
1995042007 is a deficient number, since it is larger than the sum of its proper divisors (352172393).
1995042007 is an equidigital number, since it uses as much as digits as its factorization.
1995042007 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 51607 (or 51593 counting only the distinct ones).
The product of its (nonzero) digits is 22680, while the sum is 37.
The square root of 1995042007 is about 44665.8931064856. The cubic root of 1995042007 is about 1258.8790751117.
Adding to 1995042007 its reverse (7002405991), we get a palindrome (8997447998).
The spelling of 1995042007 in words is "one billion, nine hundred ninety-five million, forty-two thousand, seven".
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