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10220540 = 2251146457
BaseRepresentation
bin100110111111…
…001111111100
3201020020221112
4212333033330
510104024130
61003021152
7152605331
oct46771774
921206845
1010220540
115850930
12350a7b8
13216b075
141500988
15d6d495
hex9bf3fc

10220540 has 24 divisors (see below), whose sum is σ = 23414832. Its totient is φ = 3716480.

The previous prime is 10220513. The next prime is 10220563. The reversal of 10220540 is 4502201.

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 7 ways as a sum of consecutive naturals, for example, 23009 + ... + 23448.

It is an arithmetic number, because the mean of its divisors is an integer number (975618).

Almost surely, 210220540 is an apocalyptic number.

10220540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220540 is an abundant number, since it is smaller than the sum of its proper divisors (13194292).

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

10220540 is a wasteful number, since it uses less digits than its factorization.

10220540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46477 (or 46475 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 10220540 is about 3196.9579290319. The cubic root of 10220540 is about 217.0157633293.

Adding to 10220540 its reverse (4502201), we get a palindrome (14722741).

The spelling of 10220540 in words is "ten million, two hundred twenty thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 46457 92914 185828 232285 464570 511027 929140 1022054 2044108 2555135 5110270 10220540