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20315263310264 = 2313195339070291
BaseRepresentation
bin1001001111010000001000…
…00011011001100110111000
32122221010020122000000212102
410213220010003121212320
510130321124401412024
6111112411513002532
74164505106653136
oct447500403314670
978833218000772
1020315263310264
11652272258023a
1223412986b3448
13b4494b381580
1450339a566756
152536a751c1ae
hex127a040d99b8

20315263310264 has 16 divisors (see below), whose sum is σ = 41021204761320. Its totient is φ = 9376275373920.

The previous prime is 20315263310227. The next prime is 20315263310311. The reversal of 20315263310264 is 46201336251302.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 97669535042 + ... + 97669535249.

Almost surely, 220315263310264 is an apocalyptic number.

It is an amenable number.

20315263310264 is an abundant number, since it is smaller than the sum of its proper divisors (20705941451056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20315263310264 is a wasteful number, since it uses less digits than its factorization.

20315263310264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195339070310 (or 195339070306 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 20315263310264 its reverse (46201336251302), we get a palindrome (66516599561566).

The spelling of 20315263310264 in words is "twenty trillion, three hundred fifteen billion, two hundred sixty-three million, three hundred ten thousand, two hundred sixty-four".

Divisors: 1 2 4 8 13 26 52 104 195339070291 390678140582 781356281164 1562712562328 2539407913783 5078815827566 10157631655132 20315263310264