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11857385838494 = 271794731598499
BaseRepresentation
bin1010110010001100001101…
…0001010101011110011110
31112222112222121101001121202
42230203003101111132132
53023232411233312434
641115112521355502
72332445034441050
oct254430321253636
945875877331552
1011857385838494
113861764203509
1213b605a638b92
136801ba369b81
142cdc871038d0
15158687972a7e
hexac8c345579e

11857385838494 has 16 divisors (see below), whose sum is σ = 20440505520000. Its totient is φ = 5053347195864.

The previous prime is 11857385838401. The next prime is 11857385838503. The reversal of 11857385838494 is 49483858375811.

11857385838494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2365796744 + ... + 2365801755.

It is an arithmetic number, because the mean of its divisors is an integer number (1277531595000).

Almost surely, 211857385838494 is an apocalyptic number.

11857385838494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11857385838494 is a deficient number, since it is larger than the sum of its proper divisors (8583119681506).

11857385838494 is a wasteful number, since it uses less digits than its factorization.

11857385838494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731598687.

The product of its digits is 928972800, while the sum is 74.

The spelling of 11857385838494 in words is "eleven trillion, eight hundred fifty-seven billion, three hundred eighty-five million, eight hundred thirty-eight thousand, four hundred ninety-four".

Divisors: 1 2 7 14 179 358 1253 2506 4731598499 9463196998 33121189493 66242378986 846956131321 1693912262642 5928692919247 11857385838494