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1131340 = 22578081
BaseRepresentation
bin100010100001101001100
32010110220111
410110031030
5242200330
640125404
712421240
oct4241514
92113814
101131340
11702aa1
12466864
13307c42
14216420
1517532a
hex11434c

1131340 has 24 divisors (see below), whose sum is σ = 2715552. Its totient is φ = 387840.

The previous prime is 1131331. The next prime is 1131341. The reversal of 1131340 is 431311.

1131340 = T395 + T396 + ... + T408.

It is a self number, because there is not a number n which added to its sum of digits gives 1131340.

It is not an unprimeable number, because it can be changed into a prime (1131341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3901 + ... + 4180.

It is an arithmetic number, because the mean of its divisors is an integer number (113148).

21131340 is an apocalyptic number.

1131340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131340 is an abundant number, since it is smaller than the sum of its proper divisors (1584212).

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

1131340 is a wasteful number, since it uses less digits than its factorization.

1131340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8097 (or 8095 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1131340 is about 1063.6446775122. The cubic root of 1131340 is about 104.1991990831.

Adding to 1131340 its reverse (431311), we get a palindrome (1562651).

The spelling of 1131340 in words is "one million, one hundred thirty-one thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 8081 16162 32324 40405 56567 80810 113134 161620 226268 282835 565670 1131340