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20132311132 = 22177317892267
BaseRepresentation
bin10010101111111110…
…101011000001011100
31220222001111101000001
4102233332223001130
5312212332424012
613125413144044
71311616551433
oct225776530134
956861441001
1020132311132
1185a118a36a
123a9a32b024
131b8ac2234b
14d8dac811a
157cc6a4357
hex4affab05c

20132311132 has 48 divisors (see below), whose sum is σ = 37852829280. Its totient is φ = 9334904832.

The previous prime is 20132311097. The next prime is 20132311153. The reversal of 20132311132 is 23111323102.

It is a super-2 number, since 2×201323111322 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8879463 + ... + 8881729.

It is an arithmetic number, because the mean of its divisors is an integer number (788600610).

Almost surely, 220132311132 is an apocalyptic number.

It is an amenable number.

20132311132 is a deficient number, since it is larger than the sum of its proper divisors (17720518148).

20132311132 is a wasteful number, since it uses less digits than its factorization.

20132311132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150 (or 4148 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20132311132 its reverse (23111323102), we get a palindrome (43243634234).

The spelling of 20132311132 in words is "twenty billion, one hundred thirty-two million, three hundred eleven thousand, one hundred thirty-two".

Divisors: 1 2 4 17 34 68 73 146 292 1241 1789 2267 2482 3578 4534 4964 7156 9068 30413 38539 60826 77078 121652 130597 154156 165491 261194 330982 522388 661964 2220149 2813347 4055663 4440298 5626694 8111326 8880596 11253388 16222652 68946271 137892542 275785084 296063399 592126798 1184253596 5033077783 10066155566 20132311132