Search a number
-
+
421412131 = 7212928277
BaseRepresentation
bin11001000111100…
…011110100100011
31002100221221202201
4121013203310203
51330340142011
6105452154031
713304641540
oct3107436443
91070857681
10421412131
111a6970198
12b9168917
13693ca6ba
143dd79bc7
1526ee2cc1
hex191e3d23

421412131 has 8 divisors (see below), whose sum is σ = 481857120. Its totient is φ = 361027968.

The previous prime is 421412087. The next prime is 421412221. The reversal of 421412131 is 131214124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421412131 - 211 = 421410083 is a prime.

It is a super-2 number, since 2×4214121312 = 355176368307922322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421412099 and 421412108.

It is not an unprimeable number, because it can be changed into a prime (421412731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765 + ... + 29041.

It is an arithmetic number, because the mean of its divisors is an integer number (60232140).

Almost surely, 2421412131 is an apocalyptic number.

421412131 is a deficient number, since it is larger than the sum of its proper divisors (60444989).

421412131 is a wasteful number, since it uses less digits than its factorization.

421412131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30413.

The product of its digits is 192, while the sum is 19.

The square root of 421412131 is about 20528.3250899824. The cubic root of 421412131 is about 749.7256068827.

Adding to 421412131 its reverse (131214124), we get a palindrome (552626255).

The spelling of 421412131 in words is "four hundred twenty-one million, four hundred twelve thousand, one hundred thirty-one".

Divisors: 1 7 2129 14903 28277 197939 60201733 421412131