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10223420 = 225511171
BaseRepresentation
bin100110111111…
…111100111100
3201020101220012
4212333330330
510104122140
61003042352
7152616614
oct46777474
921211805
1010223420
115853009
1235103b8
13216c47c
141501a44
15d6e265
hex9bff3c

10223420 has 12 divisors (see below), whose sum is σ = 21469224. Its totient is φ = 4089360.

The previous prime is 10223413. The next prime is 10223441. The reversal of 10223420 is 2432201.

It is a junction number, because it is equal to n+sod(n) for n = 10223395 and 10223404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255566 + ... + 255605.

It is an arithmetic number, because the mean of its divisors is an integer number (1789102).

Almost surely, 210223420 is an apocalyptic number.

10223420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10223420 is an abundant number, since it is smaller than the sum of its proper divisors (11245804).

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

10223420 is a wasteful number, since it uses less digits than its factorization.

10223420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511180 (or 511178 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 10223420 is about 3197.4083255036. The cubic root of 10223420 is about 217.0361453802.

Adding to 10223420 its reverse (2432201), we get a palindrome (12655621).

The spelling of 10223420 in words is "ten million, two hundred twenty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 511171 1022342 2044684 2555855 5111710 10223420