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20132100312 = 23310923333029
BaseRepresentation
bin10010101111111101…
…110111100011011000
31220222001002122210220
4102233331313203120
5312212304202222
613125404440040
71311615013002
oct225775674330
956861078726
1020132100312
1185a1055a35
123a9a249020
131b8ab7a3bc
14d8da71372
157cc661b5c
hex4aff778d8

20132100312 has 64 divisors (see below), whose sum is σ = 51011532000. Its totient is φ = 6620396544.

The previous prime is 20132100299. The next prime is 20132100319. The reversal of 20132100312 is 21300123102.

It is a junction number, because it is equal to n+sod(n) for n = 20132100291 and 20132100300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20132100319) 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, 593014 + ... + 626042.

Almost surely, 220132100312 is an apocalyptic number.

It is an amenable number.

20132100312 is an abundant number, since it is smaller than the sum of its proper divisors (30879431688).

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

20132100312 is a wasteful number, since it uses less digits than its factorization.

20132100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33380 (or 33376 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20132100312 its reverse (21300123102), we get a palindrome (41432223414).

The spelling of 20132100312 in words is "twenty billion, one hundred thirty-two million, one hundred thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 109 218 233 327 436 466 654 699 872 932 1308 1398 1864 2616 2796 5592 25397 33029 50794 66058 76191 99087 101588 132116 152382 198174 203176 264232 304764 396348 609528 792696 3600161 7200322 7695757 10800483 14400644 15391514 21600966 23087271 28801288 30783028 43201932 46174542 61566056 86403864 92349084 184698168 838837513 1677675026 2516512539 3355350052 5033025078 6710700104 10066050156 20132100312