Base | Representation |
---|---|
bin | 10010111010000010… |
… | …101010100110011100 |
3 | 1221101211011021010220 |
4 | 102322002222212130 |
5 | 313034042131030 |
6 | 13154243401340 |
7 | 1316036521224 |
oct | 227202524634 |
9 | 57354137126 |
10 | 20301130140 |
11 | 8678505605 |
12 | 3b26983250 |
13 | 1bb6bacc55 |
14 | da82b1084 |
15 | 7dc3eea10 |
hex | 4ba0aa99c |
20301130140 has 96 divisors (see below), whose sum is σ = 57347244864. Its totient is φ = 5365831680.
The previous prime is 20301130139. The next prime is 20301130151. The reversal of 20301130140 is 4103110302.
It is a super-2 number, since 2×203011301402 (a number of 21 digits) contains 22 as substring.
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 31 ways as a sum of consecutive naturals, for example, 3439672 + ... + 3445568.
It is an arithmetic number, because the mean of its divisors is an integer number (597367134).
Almost surely, 220301130140 is an apocalyptic number.
20301130140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
20301130140 is an abundant number, since it is smaller than the sum of its proper divisors (37046114724).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20301130140 is a wasteful number, since it uses less digits than its factorization.
20301130140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6407 (or 6405 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 20301130140 its reverse (4103110302), we get a palindrome (24404240442).
The spelling of 20301130140 in words is "twenty billion, three hundred one million, one hundred thirty thousand, one hundred forty".
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