Base | Representation |
---|---|
bin | 100000111100110111… |
… | …1000111010100110001 |
3 | 20202122111221110220202 |
4 | 1001321233013110301 |
5 | 2124410014330031 |
6 | 52301344244545 |
7 | 5053354655600 |
oct | 1017157072461 |
9 | 222574843822 |
10 | 70761870641 |
11 | 2801225a830 |
12 | 1186a010755 |
13 | 689923a297 |
14 | 35d3c97a37 |
15 | 1c924552cb |
hex | 1079bc7531 |
70761870641 has 24 divisors (see below), whose sum is σ = 91138310496. Its totient is φ = 54316120320.
The previous prime is 70761870631. The next prime is 70761870671. The reversal of 70761870641 is 14607816707.
It is a happy number.
It is not a de Polignac number, because 70761870641 - 26 = 70761870577 is a prime.
It is a super-2 number, since 2×707618706412 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (70761870611) 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 23 ways as a sum of consecutive naturals, for example, 943616 + ... + 1015841.
It is an arithmetic number, because the mean of its divisors is an integer number (3797429604).
Almost surely, 270761870641 is an apocalyptic number.
It is an amenable number.
70761870641 is a deficient number, since it is larger than the sum of its proper divisors (20376439855).
70761870641 is a wasteful number, since it uses less digits than its factorization.
70761870641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1959549 (or 1959542 counting only the distinct ones).
The product of its (nonzero) digits is 395136, while the sum is 47.
The spelling of 70761870641 in words is "seventy billion, seven hundred sixty-one million, eight hundred seventy thousand, six hundred forty-one".
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