Base | Representation |
---|---|
bin | 1001111000100110010… |
… | …1101000111010011000 |
3 | 121020022111100221200102 |
4 | 2132021211220322120 |
5 | 10240233342220130 |
6 | 210002141554532 |
7 | 15161046531254 |
oct | 2361145507230 |
9 | 536274327612 |
10 | 169812070040 |
11 | 66020539658 |
12 | 28ab1875a48 |
13 | 13023037922 |
14 | 830cb17264 |
15 | 463d0c7645 |
hex | 2789968e98 |
169812070040 has 32 divisors (see below), whose sum is σ = 398689210080. Its totient is φ = 64971574272.
The previous prime is 169812070039. The next prime is 169812070069. The reversal of 169812070040 is 40070218961.
169812070040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×1698120700402 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 169812069976 and 169812070003.
It is a congruent number.
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, 92288249 + ... + 92290088.
It is an arithmetic number, because the mean of its divisors is an integer number (12459037815).
Almost surely, 2169812070040 is an apocalyptic number.
169812070040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
169812070040 is an abundant number, since it is smaller than the sum of its proper divisors (228877140040).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
169812070040 is a wasteful number, since it uses less digits than its factorization.
169812070040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 184578371 (or 184578367 counting only the distinct ones).
The product of its (nonzero) digits is 24192, while the sum is 38.
The spelling of 169812070040 in words is "one hundred sixty-nine billion, eight hundred twelve million, seventy thousand, forty".
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