Base | Representation |
---|---|
bin | 100001000001101111… |
… | …0001100100010001000 |
3 | 20210001220021212020000 |
4 | 1002003132030202020 |
5 | 2130223323121223 |
6 | 52325501203000 |
7 | 5060410214106 |
oct | 1020336144210 |
9 | 223056255200 |
10 | 70925207688 |
11 | 28096481325 |
12 | 118b4860460 |
13 | 68c402891a |
14 | 360b854c76 |
15 | 1ca196b543 |
hex | 108378c888 |
70925207688 has 40 divisors (see below), whose sum is σ = 198656254830. Its totient is φ = 23641735680.
The previous prime is 70925207671. The next prime is 70925207699. The reversal of 70925207688 is 88670252907.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 70022685924 + 902521764 = 264618^2 + 30042^2 .
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 54725593 + ... + 54726888.
Almost surely, 270925207688 is an apocalyptic number.
It is an amenable number.
70925207688 is an abundant number, since it is smaller than the sum of its proper divisors (127731047142).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70925207688 is a wasteful number, since it uses less digits than its factorization.
70925207688 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 109452499 (or 109452486 counting only the distinct ones).
The product of its (nonzero) digits is 3386880, while the sum is 54.
The spelling of 70925207688 in words is "seventy billion, nine hundred twenty-five million, two hundred seven thousand, six hundred eighty-eight".
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