Base | Representation |
---|---|
bin | 11001000110110… |
… | …000100111100100 |
3 | 1002100120022002001 |
4 | 121012300213210 |
5 | 1330311434104 |
6 | 105443455044 |
7 | 13303106230 |
oct | 3106604744 |
9 | 1070508061 |
10 | 421202404 |
11 | 1a6837667 |
12 | b9087484 |
13 | 693560bc |
14 | 3dd235c0 |
15 | 26ea0aa4 |
hex | 191b09e4 |
421202404 has 96 divisors (see below), whose sum is σ = 944455680. Its totient is φ = 160123392.
The previous prime is 421202371. The next prime is 421202447. The reversal of 421202404 is 404202124.
It is a super-2 number, since 2×4212024042 = 354822930270758432, which contains 22 as substring.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 864649 + ... + 865135.
It is an arithmetic number, because the mean of its divisors is an integer number (9838080).
Almost surely, 2421202404 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 421202404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (472227840).
421202404 is an abundant number, since it is smaller than the sum of its proper divisors (523253276).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
421202404 is a wasteful number, since it uses less digits than its factorization.
421202404 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 617 (or 615 counting only the distinct ones).
The product of its (nonzero) digits is 512, while the sum is 19.
The square root of 421202404 is about 20523.2162196864. The cubic root of 421202404 is about 749.6012125883.
Adding to 421202404 its reverse (404202124), we get a palindrome (825404528).
The spelling of 421202404 in words is "four hundred twenty-one million, two hundred two thousand, four hundred four".
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