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1131214230 = 232512569047
BaseRepresentation
bin100001101101100…
…1111010110010110
32220211120122012100
41003123033112112
54304042323410
6304125502530
740014106446
oct10333172626
92824518170
101131214230
115305a4aa3
12276a11a46
1315048c543
14aa346126
156949e8c0
hex436cf596

1131214230 has 24 divisors (see below), whose sum is σ = 2941157232. Its totient is φ = 301657104.

The previous prime is 1131214219. The next prime is 1131214277. The reversal of 1131214230 is 324121311.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6284434 + ... + 6284613.

It is an arithmetic number, because the mean of its divisors is an integer number (122548218).

Almost surely, 21131214230 is an apocalyptic number.

1131214230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131214230 is an abundant number, since it is smaller than the sum of its proper divisors (1809943002).

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

1131214230 is a wasteful number, since it uses less digits than its factorization.

1131214230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12569060 (or 12569057 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1131214230 is about 33633.5283608485. The cubic root of 1131214230 is about 1041.9533769785.

Adding to 1131214230 its reverse (324121311), we get a palindrome (1455335541).

The spelling of 1131214230 in words is "one billion, one hundred thirty-one million, two hundred fourteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 12569047 25138094 37707141 62845235 75414282 113121423 125690470 188535705 226242846 377071410 565607115 1131214230