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421214244 = 223113191017
BaseRepresentation
bin11001000110110…
…011100000100100
31002100120220022120
4121012303200210
51330312323434
6105444025540
713303155603
oct3106634044
91070526276
10421214244
111a6845550
12b90922b0
136935b5c9
143dd27a3a
1526ea4349
hex191b3824

421214244 has 24 divisors (see below), whose sum is σ = 1072182048. Its totient is φ = 127640640.

The previous prime is 421214239. The next prime is 421214251. The reversal of 421214244 is 442412124.

It is a super-3 number, since 3×4212142443 (a number of 27 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1595377 + ... + 1595640.

It is an arithmetic number, because the mean of its divisors is an integer number (44674252).

Almost surely, 2421214244 is an apocalyptic number.

421214244 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

421214244 is an abundant number, since it is smaller than the sum of its proper divisors (650967804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421214244 is a wasteful number, since it uses less digits than its factorization.

421214244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191035 (or 3191033 counting only the distinct ones).

The product of its digits is 2048, while the sum is 24.

The square root of 421214244 is about 20523.5046714736. The cubic root of 421214244 is about 749.6082362861.

Adding to 421214244 its reverse (442412124), we get a palindrome (863626368).

The spelling of 421214244 in words is "four hundred twenty-one million, two hundred fourteen thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 3191017 6382034 9573051 12764068 19146102 35101187 38292204 70202374 105303561 140404748 210607122 421214244