Base | Representation |
---|---|
bin | 10010110001010001… |
… | …111111110100111100 |
3 | 1221000120121010012021 |
4 | 102301101333310330 |
5 | 312233430414200 |
6 | 13131513245524 |
7 | 1312303325230 |
oct | 226121776474 |
9 | 57016533167 |
10 | 20154154300 |
11 | 8602549475 |
12 | 3aa57038a4 |
13 | 1b925cc6b7 |
14 | d929725c0 |
15 | 7ce56b41a |
hex | 4b147fd3c |
20154154300 has 72 divisors (see below), whose sum is σ = 50044609440. Its totient is φ = 6901382400.
The previous prime is 20154154261. The next prime is 20154154337. The reversal of 20154154300 is 345145102.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 557166 + ... + 592234.
It is an arithmetic number, because the mean of its divisors is an integer number (695064020).
Almost surely, 220154154300 is an apocalyptic number.
20154154300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20154154300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25022304720).
20154154300 is an abundant number, since it is smaller than the sum of its proper divisors (29890455140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20154154300 is a wasteful number, since it uses less digits than its factorization.
20154154300 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35911 (or 35904 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 25.
Adding to 20154154300 its reverse (345145102), we get a palindrome (20499299402).
The spelling of 20154154300 in words is "twenty billion, one hundred fifty-four million, one hundred fifty-four thousand, three hundred".
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