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20201963896 = 23612678647
BaseRepresentation
bin10010110100001000…
…011000000101111000
31221010220120002122001
4102310020120011320
5312333200321041
613140342110344
71313423600632
oct226410300570
957126502561
1020201963896
118627533534
123ab971b3b4
131b9c49baba
14d99059a52
157d3862131
hex4b4218178

20201963896 has 24 divisors (see below), whose sum is σ = 38509880760. Its totient is φ = 9935377440.

The previous prime is 20201963891. The next prime is 20201963897. The reversal of 20201963896 is 69836910202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201963891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 309556 + ... + 369091.

It is an arithmetic number, because the mean of its divisors is an integer number (1604578365).

Almost surely, 220201963896 is an apocalyptic number.

It is an amenable number.

20201963896 is a deficient number, since it is larger than the sum of its proper divisors (18307916864).

20201963896 is an equidigital number, since it uses as much as digits as its factorization.

20201963896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678775 (or 678710 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 20201963896 in words is "twenty billion, two hundred one million, nine hundred sixty-three thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 61 122 244 488 3721 7442 14884 29768 678647 1357294 2714588 5429176 41397467 82794934 165589868 331179736 2525245487 5050490974 10100981948 20201963896