Search a number
-
+
1311132229 = 11981112149
BaseRepresentation
bin100111000100110…
…0100101001000101
310101101010102021221
41032021210221011
510141122212404
6334034040341
744330303641
oct11611445105
93341112257
101311132229
11613111060
123071190b1
1317b834cb4
14c61bbc21
157a18d954
hex4e264a45

1311132229 has 8 divisors (see below), whose sum is σ = 1430589600. Its totient is φ = 1191718800.

The previous prime is 1311132211. The next prime is 1311132239. The reversal of 1311132229 is 9222311131.

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 1311132229 - 27 = 1311132101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311132239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101847 + ... + 113995.

It is an arithmetic number, because the mean of its divisors is an integer number (178823700).

Almost surely, 21311132229 is an apocalyptic number.

It is an amenable number.

1311132229 is a deficient number, since it is larger than the sum of its proper divisors (119457371).

1311132229 is a wasteful number, since it uses less digits than its factorization.

1311132229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21971.

The product of its digits is 648, while the sum is 25.

The square root of 1311132229 is about 36209.5599117139. The cubic root of 1311132229 is about 1094.4993239377.

The spelling of 1311132229 in words is "one billion, three hundred eleven million, one hundred thirty-two thousand, two hundred twenty-nine".

Divisors: 1 11 9811 12149 107921 133639 119193839 1311132229