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20132302232 = 2374711636577
BaseRepresentation
bin10010101111111110…
…101000110110011000
31220222001110220210102
4102233332220312120
5312212332132412
613125413034532
71311616513460
oct225776506630
956861426712
1020132302232
1185a1183709
123a9a325a48
131b8ac1b293
14d8dac4ba0
157cc6a18c2
hex4affa8d98

20132302232 has 64 divisors (see below), whose sum is σ = 44103121920. Its totient is φ = 8436008448.

The previous prime is 20132302231. The next prime is 20132302243. The reversal of 20132302232 is 23220323102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132302231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3057728 + ... + 3064304.

It is an arithmetic number, because the mean of its divisors is an integer number (689111280).

Almost surely, 220132302232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20132302232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22051560960).

20132302232 is an abundant number, since it is smaller than the sum of its proper divisors (23970819688).

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

20132302232 is a wasteful number, since it uses less digits than its factorization.

20132302232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7800 (or 7796 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20132302232 its reverse (23220323102), we get a palindrome (43352625334).

The spelling of 20132302232 in words is "twenty billion, one hundred thirty-two million, three hundred two thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 47 56 94 188 329 376 658 1163 1316 2326 2632 4652 6577 8141 9304 13154 16282 26308 32564 46039 52616 54661 65128 92078 109322 184156 218644 309119 368312 382627 437288 618238 765254 1236476 1530508 2163833 2472952 3061016 4327666 7649051 8655332 15298102 17310664 30596204 53543357 61192408 107086714 214173428 359505397 428346856 719010794 1438021588 2516537779 2876043176 5033075558 10066151116 20132302232