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10905132 = 2237197659
BaseRepresentation
bin101001100110…
…011000101100
3202112001000210
4221212120230
510242431012
61025422420
7161456250
oct51463054
922461023
1010905132
116179207
12379aa10
13234a854
14163c260
15e5623c
hexa6662c

10905132 has 48 divisors (see below), whose sum is σ = 29272320. Its totient is φ = 3095232.

The previous prime is 10905127. The next prime is 10905133. The reversal of 10905132 is 23150901.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 10905099 and 10905108.

It is not an unprimeable number, because it can be changed into a prime (10905133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16219 + ... + 16877.

It is an arithmetic number, because the mean of its divisors is an integer number (609840).

Almost surely, 210905132 is an apocalyptic number.

10905132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10905132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14636160).

10905132 is an abundant number, since it is smaller than the sum of its proper divisors (18367188).

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

10905132 is a wasteful number, since it uses less digits than its factorization.

10905132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 10905132 is about 3302.2919313713. The cubic root of 10905132 is about 221.7568151116.

The spelling of 10905132 in words is "ten million, nine hundred five thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 197 394 591 659 788 1182 1318 1379 1977 2364 2636 2758 3954 4137 4613 5516 7908 8274 9226 13839 16548 18452 27678 55356 129823 259646 389469 519292 778938 908761 1557876 1817522 2726283 3635044 5452566 10905132