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10218834 = 232472257
BaseRepresentation
bin100110111110…
…110101010010
3201020011121100
4212332311102
510104000314
61003005230
7152600343
oct46766522
921204540
1010218834
11584a61a
123509816
13216a362
1415000ca
15d6cc09
hex9bed52

10218834 has 36 divisors (see below), whose sum is σ = 22709934. Its totient is φ = 3320832.

The previous prime is 10218833. The next prime is 10218839. The reversal of 10218834 is 43881201.

It can be written as a sum of positive squares in only one way, i.e., 5745609 + 4473225 = 2397^2 + 2115^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10218798 and 10218807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10218833) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 39634 + ... + 39890.

Almost surely, 210218834 is an apocalyptic number.

10218834 is an abundant number, since it is smaller than the sum of its proper divisors (12491100).

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

10218834 is a wasteful number, since it uses less digits than its factorization.

10218834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 10218834 is about 3196.6911017488. The cubic root of 10218834 is about 217.0036879890.

The spelling of 10218834 in words is "ten million, two hundred eighteen thousand, eight hundred thirty-four".

Divisors: 1 2 3 6 9 18 47 94 141 257 282 423 514 771 846 1542 2209 2313 4418 4626 6627 12079 13254 19881 24158 36237 39762 72474 108711 217422 567713 1135426 1703139 3406278 5109417 10218834