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1061380 = 22553069
BaseRepresentation
bin100000011001000000100
31222220221101
410003020010
5232431010
634425444
712010255
oct4031004
91886841
101061380
11665481
12432284
132b2148
141d8b2c
1515e73a
hex103204

1061380 has 12 divisors (see below), whose sum is σ = 2228940. Its totient is φ = 424544.

The previous prime is 1061377. The next prime is 1061393. The reversal of 1061380 is 831601.

It can be written as a sum of positive squares in 2 ways, for example, as 799236 + 262144 = 894^2 + 512^2 .

It is a super-2 number, since 2×10613802 = 2253055008800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26515 + ... + 26554.

It is an arithmetic number, because the mean of its divisors is an integer number (185745).

21061380 is an apocalyptic number.

1061380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061380 is an abundant number, since it is smaller than the sum of its proper divisors (1167560).

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

1061380 is a wasteful number, since it uses less digits than its factorization.

1061380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53078 (or 53076 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1061380 is about 1030.2329833586. The cubic root of 1061380 is about 102.0055104033.

Adding to 1061380 its reverse (831601), we get a palindrome (1892981).

It can be divided in two parts, 1061 and 380, that added together give a palindrome (1441).

The spelling of 1061380 in words is "one million, sixty-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 53069 106138 212276 265345 530690 1061380