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1131310230 = 23537710341
BaseRepresentation
bin100001101101110…
…0110110010010110
32220211202111212220
41003123212302112
54304103411410
6304131523210
740014656361
oct10333466226
92824674786
101131310230
11530660136
12276a59506
131504c414b
14aa36d0d8
15694bd070
hex436e6c96

1131310230 has 16 divisors (see below), whose sum is σ = 2715144624. Its totient is φ = 301682720.

The previous prime is 1131310207. The next prime is 1131310241. The reversal of 1131310230 is 320131311.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18855141 + ... + 18855200.

It is an arithmetic number, because the mean of its divisors is an integer number (169696539).

Almost surely, 21131310230 is an apocalyptic number.

1131310230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131310230 is an abundant number, since it is smaller than the sum of its proper divisors (1583834394).

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

1131310230 is a wasteful number, since it uses less digits than its factorization.

1131310230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37710351.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1131310230 is about 33634.9554778953. The cubic root of 1131310230 is about 1041.9828511170.

Adding to 1131310230 its reverse (320131311), we get a palindrome (1451441541).

The spelling of 1131310230 in words is "one billion, one hundred thirty-one million, three hundred ten thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37710341 75420682 113131023 188551705 226262046 377103410 565655115 1131310230