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1130031131 = 8917537243
BaseRepresentation
bin100001101011010…
…1110100000011011
32220202100112021212
41003112232200123
54303241444011
6304044253335
740001051255
oct10326564033
92822315255
101130031131
1152a967129
1227654124b
13150166b98
14aa118cd5
156931908b
hex435ae81b

1130031131 has 8 divisors (see below), whose sum is σ = 1143537840. Its totient is φ = 1116542592.

The previous prime is 1130031107. The next prime is 1130031143. The reversal of 1130031131 is 1311300311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1130031131 - 214 = 1130014747 is a prime.

It is a super-2 number, since 2×11300311312 = 2553940714058278322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1130031031) 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, 152396 + ... + 159638.

It is an arithmetic number, because the mean of its divisors is an integer number (142942230).

Almost surely, 21130031131 is an apocalyptic number.

1130031131 is a deficient number, since it is larger than the sum of its proper divisors (13506709).

1130031131 is an equidigital number, since it uses as much as digits as its factorization.

1130031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9085.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1130031131 is about 33615.9356704525. The cubic root of 1130031131 is about 1041.5900022454.

Adding to 1130031131 its reverse (1311300311), we get a palindrome (2441331442).

The spelling of 1130031131 in words is "one billion, one hundred thirty million, thirty-one thousand, one hundred thirty-one".

Divisors: 1 89 1753 7243 156017 644627 12696979 1130031131