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1131293 = 1915923
BaseRepresentation
bin100010100001100011101
32010110211202
410110030131
5242200133
640125245
712421142
oct4241435
92113752
101131293
11702a59
12466825
13307c07
142163c9
151752e8
hex11431d

1131293 has 4 divisors (see below), whose sum is σ = 1137408. Its totient is φ = 1125180.

The previous prime is 1131271. The next prime is 1131307. The reversal of 1131293 is 3921311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1131293 - 212 = 1127197 is a prime.

It is a super-4 number, since 4×11312934 (a number of 25 digits) contains 4444 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2771 + ... + 3152.

It is an arithmetic number, because the mean of its divisors is an integer number (284352).

21131293 is an apocalyptic number.

It is an amenable number.

1131293 is a deficient number, since it is larger than the sum of its proper divisors (6115).

1131293 is an equidigital number, since it uses as much as digits as its factorization.

1131293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114.

The product of its digits is 162, while the sum is 20.

The square root of 1131293 is about 1063.6225834383. The cubic root of 1131293 is about 104.1977561246.

The spelling of 1131293 in words is "one million, one hundred thirty-one thousand, two hundred ninety-three".

Divisors: 1 191 5923 1131293