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20104446705 = 357191470921
BaseRepresentation
bin10010101110010100…
…011000001011110001
31220220010001201012020
4102232110120023301
5312133214243310
613122540022053
71311130656150
oct225624301361
956803051166
1020104446705
118587488412
123a90b31929
131b85217415
14d8a113597
157c9eed170
hex4ae5182f1

20104446705 has 16 divisors (see below), whose sum is σ = 36762417024. Its totient is φ = 9190604160.

The previous prime is 20104446701. The next prime is 20104446727. The reversal of 20104446705 is 50764440102.

It is not a de Polignac number, because 20104446705 - 22 = 20104446701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20104446701) 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, 95735356 + ... + 95735565.

It is an arithmetic number, because the mean of its divisors is an integer number (2297651064).

Almost surely, 220104446705 is an apocalyptic number.

It is an amenable number.

20104446705 is a deficient number, since it is larger than the sum of its proper divisors (16657970319).

20104446705 is a wasteful number, since it uses less digits than its factorization.

20104446705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191470936.

The product of its (nonzero) digits is 26880, while the sum is 33.

Adding to 20104446705 its reverse (50764440102), we get a palindrome (70868886807).

The spelling of 20104446705 in words is "twenty billion, one hundred four million, four hundred forty-six thousand, seven hundred five".

Divisors: 1 3 5 7 15 21 35 105 191470921 574412763 957354605 1340296447 2872063815 4020889341 6701482235 20104446705