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8112260 = 2251341761
BaseRepresentation
bin11110111100100010000100
3120021010221002
4132330202010
54034043020
6445512432
7125644622
oct36744204
916233832
108112260
114640952
122872718
1318b0570
141112512
15aa3975
hex7bc884

8112260 has 48 divisors (see below), whose sum is σ = 18818352. Its totient is φ = 2918400.

The previous prime is 8112229. The next prime is 8112277. The reversal of 8112260 is 622118.

It can be written as a sum of positive squares in 8 ways, for example, as 5098564 + 3013696 = 2258^2 + 1736^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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, 10280 + ... + 11040.

It is an arithmetic number, because the mean of its divisors is an integer number (392049).

Almost surely, 28112260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8112260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9409176).

8112260 is an abundant number, since it is smaller than the sum of its proper divisors (10706092).

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

8112260 is a wasteful number, since it uses less digits than its factorization.

8112260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 8112260 is about 2848.2029422076. The cubic root of 8112260 is about 200.9311579959.

Adding to 8112260 its reverse (622118), we get a palindrome (8734378).

The spelling of 8112260 in words is "eight million, one hundred twelve thousand, two hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 41 52 65 82 130 164 205 260 410 533 761 820 1066 1522 2132 2665 3044 3805 5330 7610 9893 10660 15220 19786 31201 39572 49465 62402 98930 124804 156005 197860 312010 405613 624020 811226 1622452 2028065 4056130 8112260