Search a number
-
+
20747841073107 = 359359431757579
BaseRepresentation
bin1001011011110101110111…
…01100100110111111010011
32201110110210201101020002020
410231322323230212333103
510204413034303314412
6112043232051422523
74240660562166441
oct455727354467723
981413721336066
1020747841073107
11667a123432a85
1223b10a1bb4a43
13b76689140155
1451a2b5267b91
1525ea73ecb18c
hex12debbb26fd3

20747841073107 has 32 divisors (see below), whose sum is σ = 28276521984000. Its totient is φ = 13528100649120.

The previous prime is 20747841073103. The next prime is 20747841073123. The reversal of 20747841073107 is 70137014874702.

It is not a de Polignac number, because 20747841073107 - 22 = 20747841073103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20747841073107.

It is not an unprimeable number, because it can be changed into a prime (20747841073103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27008244 + ... + 27765822.

It is an arithmetic number, because the mean of its divisors is an integer number (883641312000).

Almost surely, 220747841073107 is an apocalyptic number.

20747841073107 is a deficient number, since it is larger than the sum of its proper divisors (7528680910893).

20747841073107 is a wasteful number, since it uses less digits than its factorization.

20747841073107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758431.

The product of its (nonzero) digits is 1843968, while the sum is 51.

The spelling of 20747841073107 in words is "twenty trillion, seven hundred forty-seven billion, eight hundred forty-one million, seventy-three thousand, one hundred seven".

Divisors: 1 3 59 177 359 431 1077 1293 21181 25429 63543 76287 154729 464187 757579 2272737 9129011 27387033 44697161 134091483 271970861 326516549 815912583 979549647 16046280799 19264476391 48138842397 57793429173 117219441091 351658323273 6915947024369 20747841073107