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1131002013 = 31792106149
BaseRepresentation
bin100001101101001…
…1011100010011101
32220211011212002110
41003122123202131
54304014031023
6304121144233
740012233651
oct10332334235
92824155073
101131002013
1153046a609
1227692b079
13150416a7b
14aa2cca61
156945ba93
hex4369b89d

1131002013 has 8 divisors (see below), whose sum is σ = 1516428000. Its totient is φ = 749788688.

The previous prime is 1131002011. The next prime is 1131002063. The reversal of 1131002013 is 3102001311.

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 1131002013 - 21 = 1131002011 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131002011) 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, 1052538 + ... + 1053611.

It is an arithmetic number, because the mean of its divisors is an integer number (189553500).

Almost surely, 21131002013 is an apocalyptic number.

It is an amenable number.

1131002013 is a deficient number, since it is larger than the sum of its proper divisors (385425987).

1131002013 is a wasteful number, since it uses less digits than its factorization.

1131002013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106331.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1131002013 is about 33630.3733699167. The cubic root of 1131002013 is about 1041.8882157141. Note that the first 3 decimals are identical.

Adding to 1131002013 its reverse (3102001311), we get a palindrome (4233003324).

The spelling of 1131002013 in words is "one billion, one hundred thirty-one million, two thousand, thirteen".

Divisors: 1 3 179 537 2106149 6318447 377000671 1131002013