Base | Representation |
---|---|
bin | 100001000010111100… |
… | …0111111110101000000 |
3 | 20210011201122112220100 |
4 | 1002011320333311000 |
5 | 2130314220203333 |
6 | 52333511042400 |
7 | 5061412150005 |
oct | 1020570776500 |
9 | 223151575810 |
10 | 70965787968 |
11 | 28107378949 |
12 | 11906370400 |
13 | 68cc56661a |
14 | 3612db98ac |
15 | 1ca52d5213 |
hex | 1085e3fd40 |
70965787968 has 84 divisors (see below), whose sum is σ = 214116472960. Its totient is φ = 22410245376.
The previous prime is 70965787967. The next prime is 70965787969. The reversal of 70965787968 is 86978756907.
It is an interprime number because it is at equal distance from previous prime (70965787967) and next prime (70965787969).
It is a super-2 number, since 2×709657879682 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a junction number, because it is equal to n+sod(n) for n = 70965787896 and 70965787905.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (70965787967) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3231280 + ... + 3253167.
Almost surely, 270965787968 is an apocalyptic number.
It is an amenable number.
70965787968 is an abundant number, since it is smaller than the sum of its proper divisors (143150684992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70965787968 is a wasteful number, since it uses less digits than its factorization.
70965787968 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6484484 (or 6484471 counting only the distinct ones).
The product of its (nonzero) digits is 320060160, while the sum is 72.
The spelling of 70965787968 in words is "seventy billion, nine hundred sixty-five million, seven hundred eighty-seven thousand, nine hundred sixty-eight".
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