Base | Representation |
---|---|
bin | 1110110011001011… |
… | …01101000001111110 |
3 | 202111201212120110220 |
4 | 13121211231001332 |
5 | 112233022210232 |
6 | 3352231442210 |
7 | 400616460162 |
oct | 73145550176 |
9 | 22451776426 |
10 | 7945506942 |
11 | 3408038a6a |
12 | 1658b26366 |
13 | 9981738c9 |
14 | 555360ca2 |
15 | 31783442c |
hex | 1d996d07e |
7945506942 has 16 divisors (see below), whose sum is σ = 16438980240. Its totient is φ = 2557174592.
The previous prime is 7945506911. The next prime is 7945506949. The reversal of 7945506942 is 2496055497.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7945506949) 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 7 ways as a sum of consecutive naturals, for example, 22831743 + ... + 22832090.
It is an arithmetic number, because the mean of its divisors is an integer number (1027436265).
Almost surely, 27945506942 is an apocalyptic number.
7945506942 is an abundant number, since it is smaller than the sum of its proper divisors (8493473298).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7945506942 is a wasteful number, since it uses less digits than its factorization.
7945506942 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45663867.
The product of its (nonzero) digits is 2721600, while the sum is 51.
The square root of 7945506942 is about 89137.5731215518. The cubic root of 7945506942 is about 1995.4485618961.
The spelling of 7945506942 in words is "seven billion, nine hundred forty-five million, five hundred six thousand, nine hundred forty-two".
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