Base | Representation |
---|---|
bin | 111100000110100111… |
… | …0100111100100101000 |
3 | 110100011011202212012001 |
4 | 1320031032213210220 |
5 | 4103314131023132 |
6 | 135143330300344 |
7 | 12216333004513 |
oct | 1701516474450 |
9 | 410134685161 |
10 | 129070954792 |
11 | 4a81420977a |
12 | 210217276b4 |
13 | c22c57b940 |
14 | 6365d4bd7a |
15 | 35564eace7 |
hex | 1e0d3a7928 |
129070954792 has 32 divisors (see below), whose sum is σ = 260803718280. Its totient is φ = 59530141440.
The previous prime is 129070954777. The next prime is 129070954801. The reversal of 129070954792 is 297459070921.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 109967844996 + 19103109796 = 331614^2 + 138214^2 .
It is a super-2 number, since 2×1290709547922 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275959 + ... + 578182.
Almost surely, 2129070954792 is an apocalyptic number.
It is an amenable number.
129070954792 is an abundant number, since it is smaller than the sum of its proper divisors (131732763488).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
129070954792 is a wasteful number, since it uses less digits than its factorization.
129070954792 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 855613 (or 855609 counting only the distinct ones).
The product of its (nonzero) digits is 2857680, while the sum is 55.
The spelling of 129070954792 in words is "one hundred twenty-nine billion, seventy million, nine hundred fifty-four thousand, seven hundred ninety-two".
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