Base | Representation |
---|---|
bin | 111100100010010… |
… | …0010000000110110 |
3 | 12020120010020010220 |
4 | 1321010202000312 |
5 | 13124443343110 |
6 | 533320155210 |
7 | 101223115233 |
oct | 17104420066 |
9 | 5216106126 |
10 | 2031231030 |
11 | 952638a34 |
12 | 488308b06 |
13 | 264a9076a |
14 | 153aa878a |
15 | bd4d1370 |
hex | 79122036 |
2031231030 has 32 divisors (see below), whose sum is σ = 4876257888. Its totient is φ = 541516800.
The previous prime is 2031231019. The next prime is 2031231049. The reversal of 2031231030 is 301321302.
It is a Harshad number since it is a multiple of its sum of digits (15).
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, 152020 + ... + 164840.
It is an arithmetic number, because the mean of its divisors is an integer number (152383059).
Almost surely, 22031231030 is an apocalyptic number.
2031231030 is an abundant number, since it is smaller than the sum of its proper divisors (2845026858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2031231030 is a wasteful number, since it uses less digits than its factorization.
2031231030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18112.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 2031231030 is about 45069.1804895541. The cubic root of 2031231030 is about 1266.4453122739.
Adding to 2031231030 its reverse (301321302), we get a palindrome (2332552332).
The spelling of 2031231030 in words is "two billion, thirty-one million, two hundred thirty-one thousand, thirty".
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