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10871838 = 2321983383
BaseRepresentation
bin101001011110…
…010000011110
3202110100100200
4221132100132
510240344323
61025004330
7161260215
oct51362036
922410320
1010871838
11615619a
1237836a6
132338653
14163007c
15e4b443
hexa5e41e

10871838 has 48 divisors (see below), whose sum is σ = 25159680. Its totient is φ = 3382992.

The previous prime is 10871813. The next prime is 10871851. The reversal of 10871838 is 83817801.

10871838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×108718382 = 236393722996488, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28195 + ... + 28577.

It is an arithmetic number, because the mean of its divisors is an integer number (524160).

Almost surely, 210871838 is an apocalyptic number.

10871838 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10871838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12579840).

10871838 is an abundant number, since it is smaller than the sum of its proper divisors (14287842).

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

10871838 is a wasteful number, since it uses less digits than its factorization.

10871838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 10871838 is about 3297.2470335114. The cubic root of 10871838 is about 221.5309062483.

The spelling of 10871838 in words is "ten million, eight hundred seventy-one thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 19 38 57 83 114 166 171 249 342 383 498 747 766 1149 1494 1577 2298 3154 3447 4731 6894 7277 9462 14193 14554 21831 28386 31789 43662 63578 65493 95367 130986 190734 286101 572202 603991 1207982 1811973 3623946 5435919 10871838