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20315305535306 = 2193223487484621
BaseRepresentation
bin1001001111010000001101…
…00100011110011101001010
32122221010100120110021201212
410213220012210132131022
510130321221204112211
6111112420022013122
74164506131606205
oct447500644363512
978833316407655
1020315305535306
1165227443a0571
1223412aa8771a2
13b44957046ac2
145033a1dd893c
152536ab0ad38b
hex127a0691e74a

20315305535306 has 32 divisors (see below), whose sum is σ = 30831450037248. Its totient is φ = 10039031239680.

The previous prime is 20315305535269. The next prime is 20315305535309. The reversal of 20315305535306 is 60353550351302.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20315305535309) 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, 41677676 + ... + 42162296.

It is an arithmetic number, because the mean of its divisors is an integer number (963482813664).

Almost surely, 220315305535306 is an apocalyptic number.

20315305535306 is a deficient number, since it is larger than the sum of its proper divisors (10516144501942).

20315305535306 is a wasteful number, since it uses less digits than its factorization.

20315305535306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485526.

The product of its (nonzero) digits is 607500, while the sum is 41.

Adding to 20315305535306 its reverse (60353550351302), we get a palindrome (80668855886608).

The spelling of 20315305535306 in words is "twenty trillion, three hundred fifteen billion, three hundred five million, five hundred thirty-five thousand, three hundred six".

Divisors: 1 2 193 223 386 446 487 974 43039 86078 93991 108601 187982 217202 484621 969242 20959993 41919986 93531853 108070483 187063706 216140966 236010427 472020854 20857603219 41715206438 45550012411 52630325221 91100024822 105260650442 10157652767653 20315305535306