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256660036141 = 523768763841
BaseRepresentation
bin1110111100001000100…
…0010101101000101101
3220112111002010202011111
43233002020111220231
513201114432124031
6313524043152021
724354163211515
oct3570210255055
9815432122144
10256660036141
1199937998a53
12418aab15611
131b283b13a92
14c5cb154845
156a2287d1b1
hex3bc2215a2d

256660036141 has 8 divisors (see below), whose sum is σ = 257188263104. Its totient is φ = 256131953280.

The previous prime is 256660036067. The next prime is 256660036153. The reversal of 256660036141 is 141630066652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256660036141 - 27 = 256660036013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256660036094 and 256660036103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256660436141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3988381 + ... + 4052221.

It is an arithmetic number, because the mean of its divisors is an integer number (32148532888).

Almost surely, 2256660036141 is an apocalyptic number.

It is an amenable number.

256660036141 is a deficient number, since it is larger than the sum of its proper divisors (528226963).

256660036141 is an equidigital number, since it uses as much as digits as its factorization.

256660036141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72051.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 256660036141 in words is "two hundred fifty-six billion, six hundred sixty million, thirty-six thousand, one hundred forty-one".

Divisors: 1 523 7687 63841 4020301 33388843 490745767 256660036141