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20347669941 = 325746395689
BaseRepresentation
bin10010111100110100…
…001100110110110101
31221112001201201202020
4102330310030312311
5313133000414231
613203025103353
71320143224614
oct227464146665
957461651666
1020347669941
1186a1802655
123b3a487b59
131bc37263b1
14db054787b
157e1544396
hex4bcd0cdb5

20347669941 has 16 divisors (see below), whose sum is σ = 27246451200. Its totient is φ = 13507043328.

The previous prime is 20347669933. The next prime is 20347669957. The reversal of 20347669941 is 14996674302.

It is a happy number.

It is not a de Polignac number, because 20347669941 - 23 = 20347669933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20347669241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3573825 + ... + 3579513.

It is an arithmetic number, because the mean of its divisors is an integer number (1702903200).

Almost surely, 220347669941 is an apocalyptic number.

It is an amenable number.

20347669941 is a deficient number, since it is larger than the sum of its proper divisors (6898781259).

20347669941 is a wasteful number, since it uses less digits than its factorization.

20347669941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10588.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 20347669941 in words is "twenty billion, three hundred forty-seven million, six hundred sixty-nine thousand, nine hundred forty-one".

Divisors: 1 3 257 771 4639 5689 13917 17067 1192223 1462073 3576669 4386219 26391271 79173813 6782556647 20347669941