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11857871206 = 213183449741
BaseRepresentation
bin10110000101100100…
…01100000101100110
31010121101200021022001
423002302030011212
5143241103334311
65240351155514
7566564146036
oct130262140546
933541607261
1011857871206
115035506165
12236b215b9a
13116c89054c
14806bc18c6
154960484c1
hex2c2c8c166

11857871206 has 8 divisors (see below), whose sum is σ = 17788195584. Its totient is φ = 5928472680.

The previous prime is 11857871203. The next prime is 11857871257. The reversal of 11857871206 is 60217875811.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11857871203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198505 + ... + 251236.

It is an arithmetic number, because the mean of its divisors is an integer number (2223524448).

Almost surely, 211857871206 is an apocalyptic number.

11857871206 is a deficient number, since it is larger than the sum of its proper divisors (5930324378).

11857871206 is a wasteful number, since it uses less digits than its factorization.

11857871206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462926.

The product of its (nonzero) digits is 188160, while the sum is 46.

The spelling of 11857871206 in words is "eleven billion, eight hundred fifty-seven million, eight hundred seventy-one thousand, two hundred six".

Divisors: 1 2 13183 26366 449741 899482 5928935603 11857871206