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11230203132 = 2232433720439
BaseRepresentation
bin10100111010101111…
…10100110011111100
31001222122121102120100
422131113310303330
5140444413000012
65054210121100
7545203103001
oct123527646374
931878542510
1011230203132
11484317a915
122214b80190
13109c828215
147876b58a8
1545adb28dc
hex29d5f4cfc

11230203132 has 36 divisors (see below), whose sum is σ = 28453057360. Its totient is φ = 3734750592.

The previous prime is 11230203121. The next prime is 11230203139. The reversal of 11230203132 is 23130203211.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×112302031322 (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230203139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344632 + ... + 375807.

Almost surely, 211230203132 is an apocalyptic number.

11230203132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11230203132 is an abundant number, since it is smaller than the sum of its proper divisors (17222854228).

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

11230203132 is a wasteful number, since it uses less digits than its factorization.

11230203132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720882 (or 720877 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11230203132 its reverse (23130203211), we get a palindrome (34360406343).

The spelling of 11230203132 in words is "eleven billion, two hundred thirty million, two hundred three thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 36 433 866 1299 1732 2598 3897 5196 7794 15588 720439 1440878 2161317 2881756 4322634 6483951 8645268 12967902 25935804 311950087 623900174 935850261 1247800348 1871700522 2807550783 3743401044 5615101566 11230203132