Base | Representation |
---|---|
bin | 100001001100010111… |
… | …1100010011111101111 |
3 | 20210222202210122000020 |
4 | 1002120233202133233 |
5 | 2131441202410011 |
6 | 52425130133223 |
7 | 5102302434324 |
oct | 1023057423757 |
9 | 223882718006 |
10 | 71282075631 |
11 | 28259967508 |
12 | 11994281213 |
13 | 694cc47ba0 |
14 | 3642dccb4b |
15 | 1cc2e60006 |
hex | 1098be27ef |
71282075631 has 8 divisors (see below), whose sum is σ = 102353749680. Its totient is φ = 43865892672.
The previous prime is 71282075611. The next prime is 71282075653. The reversal of 71282075631 is 13657028217.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 71282075631 - 210 = 71282074607 is a prime.
It is a super-2 number, since 2×712820756312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71282075611) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913872726 + ... + 913872803.
It is an arithmetic number, because the mean of its divisors is an integer number (12794218710).
Almost surely, 271282075631 is an apocalyptic number.
71282075631 is a deficient number, since it is larger than the sum of its proper divisors (31071674049).
71282075631 is a wasteful number, since it uses less digits than its factorization.
71282075631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1827745545.
The product of its (nonzero) digits is 141120, while the sum is 42.
The spelling of 71282075631 in words is "seventy-one billion, two hundred eighty-two million, seventy-five thousand, six hundred thirty-one".
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