Base | Representation |
---|---|
bin | 1111100011000… |
… | …01001011001011 |
3 | 100002102002121010 |
4 | 13301201023023 |
5 | 231341441301 |
6 | 20535215003 |
7 | 3142364316 |
oct | 761411313 |
9 | 302362533 |
10 | 130421451 |
11 | 6768a626 |
12 | 37817463 |
13 | 21035574 |
14 | 1346d97d |
15 | b6b35d6 |
hex | 7c612cb |
130421451 has 16 divisors (see below), whose sum is σ = 182286720. Its totient is φ = 82850880.
The previous prime is 130421449. The next prime is 130421461. The reversal of 130421451 is 154124031.
It is not a de Polignac number, because 130421451 - 21 = 130421449 is a prime.
It is not an unprimeable number, because it can be changed into a prime (130421461) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7041 + ... + 17618.
It is an arithmetic number, because the mean of its divisors is an integer number (11392920).
Almost surely, 2130421451 is an apocalyptic number.
130421451 is a deficient number, since it is larger than the sum of its proper divisors (51865269).
130421451 is a wasteful number, since it uses less digits than its factorization.
130421451 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24746.
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 130421451 is about 11420.2211449691. The cubic root of 130421451 is about 507.1265435018.
Adding to 130421451 its reverse (154124031), we get a palindrome (284545482).
The spelling of 130421451 in words is "one hundred thirty million, four hundred twenty-one thousand, four hundred fifty-one".
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