Base | Representation |
---|---|
bin | 111111011110101… |
… | …1000011111011000 |
3 | 12111110000020120012 |
4 | 1332331120133120 |
5 | 13330241122222 |
6 | 551205421052 |
7 | 103532605520 |
oct | 17675303730 |
9 | 5443006505 |
10 | 2130020312 |
11 | 9a3382872 |
12 | 4b540a788 |
13 | 27c39c164 |
14 | 162c62680 |
15 | c6ee71e2 |
hex | 7ef587d8 |
2130020312 has 16 divisors (see below), whose sum is σ = 4564329360. Its totient is φ = 912865824.
The previous prime is 2130020309. The next prime is 2130020359. The reversal of 2130020312 is 2130200312.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (14).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19017983 + ... + 19018094.
It is an arithmetic number, because the mean of its divisors is an integer number (285270585).
Almost surely, 22130020312 is an apocalyptic number.
It is an amenable number.
2130020312 is an abundant number, since it is smaller than the sum of its proper divisors (2434309048).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2130020312 is a wasteful number, since it uses less digits than its factorization.
2130020312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38036090 (or 38036086 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
The square root of 2130020312 is about 46152.1430921685. The cubic root of 2130020312 is about 1286.6524411014.
Adding to 2130020312 its reverse (2130200312), we get a palindrome (4260220624).
The spelling of 2130020312 in words is "two billion, one hundred thirty million, twenty thousand, three hundred twelve".
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