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1131004230 = 23537700141
BaseRepresentation
bin100001101101001…
…1100000101000110
32220211011222010120
41003122130011012
54304014113410
6304121202410
740012243266
oct10332340506
92824158116
101131004230
11530471244
12276930406
13150417a95
14aa2cd7a6
156945c570
hex4369c146

1131004230 has 16 divisors (see below), whose sum is σ = 2714410224. Its totient is φ = 301601120.

The previous prime is 1131004201. The next prime is 1131004247. The reversal of 1131004230 is 324001311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 18850041 + ... + 18850100.

It is an arithmetic number, because the mean of its divisors is an integer number (169650639).

Almost surely, 21131004230 is an apocalyptic number.

1131004230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131004230 is an abundant number, since it is smaller than the sum of its proper divisors (1583405994).

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

1131004230 is a wasteful number, since it uses less digits than its factorization.

1131004230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37700151.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1131004230 is about 33630.4063311760. The cubic root of 1131004230 is about 1041.8888964864. Note that the first 4 decimals are identical.

Adding to 1131004230 its reverse (324001311), we get a palindrome (1455005541).

The spelling of 1131004230 in words is "one billion, one hundred thirty-one million, four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37700141 75400282 113100423 188500705 226200846 377001410 565502115 1131004230