Base | Representation |
---|---|
bin | 10010110110101101… |
… | …001000101001111110 |
3 | 1221020220211101220110 |
4 | 102312231020221332 |
5 | 312430224420210 |
6 | 13144523530450 |
7 | 1314456654564 |
oct | 226655105176 |
9 | 57226741813 |
10 | 20245154430 |
11 | 8649953196 |
12 | 3b10089a26 |
13 | 1ba8411927 |
14 | da0a9da34 |
15 | 7d7544420 |
hex | 4b6b48a7e |
20245154430 has 16 divisors (see below), whose sum is σ = 48588370704. Its totient is φ = 5398707840.
The previous prime is 20245154399. The next prime is 20245154437. The reversal of 20245154430 is 3445154202.
It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 674838481 = 20245154430 / (2 + 0 + 2 + 4 + 5 + 1 + 5 + 4 + 4 + 3 + 0).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20245154437) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337419211 + ... + 337419270.
It is an arithmetic number, because the mean of its divisors is an integer number (3036773169).
Almost surely, 220245154430 is an apocalyptic number.
20245154430 is an abundant number, since it is smaller than the sum of its proper divisors (28343216274).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20245154430 is a wasteful number, since it uses less digits than its factorization.
20245154430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 674838491.
The product of its (nonzero) digits is 19200, while the sum is 30.
The spelling of 20245154430 in words is "twenty billion, two hundred forty-five million, one hundred fifty-four thousand, four hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •