Base | Representation |
---|---|
bin | 1001001101011001001110… |
… | …10011100110101110010010 |
3 | 2122201000110222211122212110 |
4 | 10212230213103212232102 |
5 | 10123244412121021120 |
6 | 111023213441010150 |
7 | 4160055214630551 |
oct | 446544723465622 |
9 | 78630428748773 |
10 | 20251430251410 |
11 | 64a8646472346 |
12 | 2330a43023956 |
13 | b3b917783927 |
14 | 5002629b7d98 |
15 | 251bbd51d2e0 |
hex | 126b274e6b92 |
20251430251410 has 128 divisors (see below), whose sum is σ = 49234543787520. Its totient is φ = 5330603520000.
The previous prime is 20251430251301. The next prime is 20251430251411. The reversal of 20251430251410 is 1415203415202.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is not an unprimeable number, because it can be changed into a prime (20251430251411) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2045387460 + ... + 2045397360.
It is an arithmetic number, because the mean of its divisors is an integer number (384644873340).
Almost surely, 220251430251410 is an apocalyptic number.
20251430251410 is an abundant number, since it is smaller than the sum of its proper divisors (28983113536110).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20251430251410 is a wasteful number, since it uses less digits than its factorization.
20251430251410 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12004.
The product of its (nonzero) digits is 9600, while the sum is 30.
Adding to 20251430251410 its reverse (1415203415202), we get a palindrome (21666633666612).
The spelling of 20251430251410 in words is "twenty trillion, two hundred fifty-one billion, four hundred thirty million, two hundred fifty-one thousand, four hundred ten".
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