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421421234 = 21379205171
BaseRepresentation
bin11001000111100…
…110000010110010
31002100222102020212
4121013212002302
51330340434414
6105452304122
713305010223
oct3107460262
91070872225
10421421234
111a6977013
12b9172042
13694018a0
143dd7d24a
1526ee583e
hex191e60b2

421421234 has 16 divisors (see below), whose sum is σ = 689377920. Its totient is φ = 192039120.

The previous prime is 421421213. The next prime is 421421239. The reversal of 421421234 is 432124124.

It is not an unprimeable number, because it can be changed into a prime (421421239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100532 + ... + 104639.

It is an arithmetic number, because the mean of its divisors is an integer number (43086120).

Almost surely, 2421421234 is an apocalyptic number.

421421234 is a deficient number, since it is larger than the sum of its proper divisors (267956686).

421421234 is a wasteful number, since it uses less digits than its factorization.

421421234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205265.

The product of its digits is 1536, while the sum is 23.

The square root of 421421234 is about 20528.5468068249. The cubic root of 421421234 is about 749.7310051635.

Adding to 421421234 its reverse (432124124), we get a palindrome (853545358).

The spelling of 421421234 in words is "four hundred twenty-one million, four hundred twenty-one thousand, two hundred thirty-four".

Divisors: 1 2 13 26 79 158 1027 2054 205171 410342 2667223 5334446 16208509 32417018 210710617 421421234