Base | Representation |
---|---|
bin | 1111100011000… |
… | …01001010110110 |
3 | 100002102002120100 |
4 | 13301201022312 |
5 | 231341441210 |
6 | 20535214530 |
7 | 3142364256 |
oct | 761411266 |
9 | 302362510 |
10 | 130421430 |
11 | 6768a607 |
12 | 37817446 |
13 | 21035559 |
14 | 1346d966 |
15 | b6b35c0 |
hex | 7c612b6 |
130421430 has 24 divisors (see below), whose sum is σ = 339095952. Its totient is φ = 34779024.
The previous prime is 130421429. The next prime is 130421449. The reversal of 130421430 is 34124031.
It is a super-3 number, since 3×1304214303 (a number of 25 digits) contains 333 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 724474 + ... + 724653.
It is an arithmetic number, because the mean of its divisors is an integer number (14128998).
Almost surely, 2130421430 is an apocalyptic number.
130421430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130421430 is an abundant number, since it is smaller than the sum of its proper divisors (208674522).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130421430 is a wasteful number, since it uses less digits than its factorization.
130421430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1449140 (or 1449137 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 130421430 is about 11420.2202255473. The cubic root of 130421430 is about 507.1265162833.
Adding to 130421430 its reverse (34124031), we get a palindrome (164545461).
The spelling of 130421430 in words is "one hundred thirty million, four hundred twenty-one thousand, four hundred thirty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •