Base | Representation |
---|---|
bin | 1111100000110… |
… | …00010100111110 |
3 | 100001211221021222 |
4 | 13300120110332 |
5 | 231302414240 |
6 | 20524553342 |
7 | 3140012360 |
oct | 760302476 |
9 | 301757258 |
10 | 130123070 |
11 | 674a6430 |
12 | 376b2852 |
13 | 20c5c7cc |
14 | 133d2d30 |
15 | b654eb5 |
hex | 7c1853e |
130123070 has 32 divisors (see below), whose sum is σ = 292018176. Its totient is φ = 40557600.
The previous prime is 130123069. The next prime is 130123079. The reversal of 130123070 is 70321031.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130123079) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83726 + ... + 85265.
It is an arithmetic number, because the mean of its divisors is an integer number (9125568).
Almost surely, 2130123070 is an apocalyptic number.
130123070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130123070 is an abundant number, since it is smaller than the sum of its proper divisors (161895106).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130123070 is a wasteful number, since it uses less digits than its factorization.
130123070 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 169016.
The product of its (nonzero) digits is 126, while the sum is 17.
The square root of 130123070 is about 11407.1499507984. The cubic root of 130123070 is about 506.7395098601.
The spelling of 130123070 in words is "one hundred thirty million, one hundred twenty-three thousand, seventy".
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