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20012310332 = 227714725369
BaseRepresentation
bin10010101000110100…
…111001111100111100
31220122200200200211222
4102220310321330330
5311441122412312
613105445132512
71305631555040
oct225064717474
956580620758
1020012310332
11853a477a53
123a660ba138
131b6c0c7c61
14d7bbac020
157c1d9d672
hex4a8d39f3c

20012310332 has 12 divisors (see below), whose sum is σ = 40024620720. Its totient is φ = 8576704416.

The previous prime is 20012310317. The next prime is 20012310341. The reversal of 20012310332 is 23301321002.

20012310332 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20012310332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357362657 + ... + 357362712.

It is an arithmetic number, because the mean of its divisors is an integer number (3335385060).

Almost surely, 220012310332 is an apocalyptic number.

It is an amenable number.

20012310332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20012310332 is a wasteful number, since it uses less digits than its factorization.

20012310332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714725380 (or 714725378 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20012310332 its reverse (23301321002), we get a palindrome (43313631334).

The spelling of 20012310332 in words is "twenty billion, twelve million, three hundred ten thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 714725369 1429450738 2858901476 5003077583 10006155166 20012310332