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256303303541593 = 71112726209561667
BaseRepresentation
bin111010010001101101000011…
…010111001100001101011001
31020121111100121220110012110221
4322101231003113030031121
5232043233131201312333
62305040040121240041
7104662205536105210
oct7221550327141531
91217440556405427
10256303303541593
1174736691043850
12248b5369933021
13b0023b43c2889
144741208bbc077
151e97085397d2d
hexe91b435cc359

256303303541593 has 16 divisors (see below), whose sum is σ = 322063093776384. Its totient is φ = 198144286194960.

The previous prime is 256303303541591. The next prime is 256303303541617. The reversal of 256303303541593 is 395145303303652.

256303303541593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 256303303541593 - 21 = 256303303541591 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256303303541593.

It is not an unprimeable number, because it can be changed into a prime (256303303541591) 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, 13104771055 + ... + 13104790612.

It is an arithmetic number, because the mean of its divisors is an integer number (20128943361024).

Almost surely, 2256303303541593 is an apocalyptic number.

It is an amenable number.

256303303541593 is a deficient number, since it is larger than the sum of its proper divisors (65759790234791).

256303303541593 is a wasteful number, since it uses less digits than its factorization.

256303303541593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26209561812.

The product of its (nonzero) digits is 13122000, while the sum is 52.

The spelling of 256303303541593 in words is "two hundred fifty-six trillion, three hundred three billion, three hundred three million, five hundred forty-one thousand, five hundred ninety-three".

Divisors: 1 7 11 77 127 889 1397 9779 26209561667 183466931669 288305178337 2018136248359 3328614331709 23300300321963 36614757648799 256303303541593