Base | Representation |
---|---|
bin | 1111100010001… |
… | …10100000100110 |
3 | 100002012112202220 |
4 | 13301012200212 |
5 | 231324442410 |
6 | 20533013210 |
7 | 3141431016 |
oct | 761064046 |
9 | 302175686 |
10 | 130312230 |
11 | 67615564 |
12 | 37784206 |
13 | 20cc7939 |
14 | 13441c46 |
15 | b691070 |
hex | 7c46826 |
130312230 has 32 divisors (see below), whose sum is σ = 313062624. Its totient is φ = 34715136.
The previous prime is 130312223. The next prime is 130312243. The reversal of 130312230 is 32213031.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45192 + ... + 47988.
It is an arithmetic number, because the mean of its divisors is an integer number (9783207).
Almost surely, 2130312230 is an apocalyptic number.
130312230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130312230 is an abundant number, since it is smaller than the sum of its proper divisors (182750394).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130312230 is a wasteful number, since it uses less digits than its factorization.
130312230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4360.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 130312230 is about 11415.4382307470. The cubic root of 130312230 is about 506.9849401671.
Adding to 130312230 its reverse (32213031), we get a palindrome (162525261).
The spelling of 130312230 in words is "one hundred thirty million, three hundred twelve thousand, two hundred thirty".
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