Base | Representation |
---|---|
bin | 11100000100100110… |
… | …101110010101100000 |
3 | 2212210122112211112221 |
4 | 130010212232111200 |
5 | 443212324444300 |
6 | 21502544200424 |
7 | 2114643015661 |
oct | 340446562540 |
9 | 85718484487 |
10 | 30142031200 |
11 | 11868433196 |
12 | 5a12609114 |
13 | 2ac4933b28 |
14 | 165d25b368 |
15 | bb633231a |
hex | 7049ae560 |
30142031200 has 36 divisors (see below), whose sum is σ = 73584235620. Its totient is φ = 12056812160.
The previous prime is 30142031191. The next prime is 30142031219. The reversal of 30142031200 is 213024103.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18837970 + ... + 18839569.
It is an arithmetic number, because the mean of its divisors is an integer number (2044006545).
Almost surely, 230142031200 is an apocalyptic number.
It is an amenable number.
30142031200 is an abundant number, since it is smaller than the sum of its proper divisors (43442204420).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30142031200 is a wasteful number, since it uses less digits than its factorization.
30142031200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37677559 (or 37677546 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 30142031200 its reverse (213024103), we get a palindrome (30355055303).
The spelling of 30142031200 in words is "thirty billion, one hundred forty-two million, thirty-one thousand, two hundred".
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