Search a number
-
+
256101570813 = 31113159241631
BaseRepresentation
bin1110111010000011010…
…1111101100011111101
3220111001011021202202110
43232200311331203331
513143444000231223
6313352413244233
724334302301644
oct3564065754375
9814034252673
10256101570813
1199680729760
1241773a93679
131b1c51cb41a
14c576d0035b
1569dd816d93
hex3ba0d7d8fd

256101570813 has 16 divisors (see below), whose sum is σ = 375354980352. Its totient is φ = 154028238000.

The previous prime is 256101570793. The next prime is 256101570839. The reversal of 256101570813 is 318075101652.

It is not a de Polignac number, because 256101570813 - 221 = 256099473661 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256101570853) 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, 29616493 + ... + 29625138.

It is an arithmetic number, because the mean of its divisors is an integer number (23459686272).

Almost surely, 2256101570813 is an apocalyptic number.

It is an amenable number.

256101570813 is a deficient number, since it is larger than the sum of its proper divisors (119253409539).

256101570813 is a wasteful number, since it uses less digits than its factorization.

256101570813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59241776.

The product of its (nonzero) digits is 50400, while the sum is 39.

The spelling of 256101570813 in words is "two hundred fifty-six billion, one hundred one million, five hundred seventy thousand, eight hundred thirteen".

Divisors: 1 3 11 33 131 393 1441 4323 59241631 177724893 651657941 1954973823 7760653661 23281960983 85367190271 256101570813