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421102131 = 3630122277
BaseRepresentation
bin11001000110011…
…000001000110011
31002100101012112020
4121012120020303
51330300232011
6105441402523
713302211002
oct3106301063
91070335466
10421102131
111a677929a
12b9039443
136931c578
143dcd8c39
1526e81006
hex19198233

421102131 has 8 divisors (see below), whose sum is σ = 561583824. Its totient is φ = 280677600.

The previous prime is 421102091. The next prime is 421102133. The reversal of 421102131 is 131201124.

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

It is not a de Polignac number, because 421102131 - 214 = 421085747 is a prime.

It is a super-2 number, since 2×4211021312 = 354654009465482322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421102131.

It is not an unprimeable number, because it can be changed into a prime (421102133) 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, 7765 + ... + 30041.

It is an arithmetic number, because the mean of its divisors is an integer number (70197978).

Almost surely, 2421102131 is an apocalyptic number.

421102131 is a deficient number, since it is larger than the sum of its proper divisors (140481693).

421102131 is a wasteful number, since it uses less digits than its factorization.

421102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28581.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 421102131 is about 20520.7731579490. The cubic root of 421102131 is about 749.5417235896.

Adding to 421102131 its reverse (131201124), we get a palindrome (552303255).

The spelling of 421102131 in words is "four hundred twenty-one million, one hundred two thousand, one hundred thirty-one".

Divisors: 1 3 6301 18903 22277 66831 140367377 421102131