Base | Representation |
---|---|
bin | 1101011111111100… |
… | …00010011110000110 |
3 | 200201001222002121200 |
4 | 12233332002132012 |
5 | 104320243240032 |
6 | 3155045323330 |
7 | 344410356516 |
oct | 65776023606 |
9 | 20631862550 |
10 | 7247243142 |
11 | 3089975047 |
12 | 14a3106546 |
13 | 8b65c1869 |
14 | 4ca719846 |
15 | 2c63a647c |
hex | 1aff82786 |
7247243142 has 24 divisors (see below), whose sum is σ = 15707438760. Its totient is φ = 2414966400.
The previous prime is 7247243141. The next prime is 7247243153. The reversal of 7247243142 is 2413427427.
7247243142 is a `hidden beast` number, since 7 + 2 + 472 + 43 + 142 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 7247243097 and 7247243106.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7247243141) 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 11 ways as a sum of consecutive naturals, for example, 6484 + ... + 120567.
It is an arithmetic number, because the mean of its divisors is an integer number (654476615).
Almost surely, 27247243142 is an apocalyptic number.
7247243142 is an abundant number, since it is smaller than the sum of its proper divisors (8460195618).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7247243142 is a wasteful number, since it uses less digits than its factorization.
7247243142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 130228 (or 130225 counting only the distinct ones).
The product of its digits is 75264, while the sum is 36.
The square root of 7247243142 is about 85130.7414627642. The cubic root of 7247243142 is about 1935.1929683564.
The spelling of 7247243142 in words is "seven billion, two hundred forty-seven million, two hundred forty-three thousand, one hundred forty-two".
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