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11857041078 = 2319310239241
BaseRepresentation
bin10110000101011110…
…00001011010110110
31010121100010002120120
423002233001122312
5143240400303303
65240321312410
7566554120611
oct130257013266
933540102516
1011857041078
115034a99503
12236aa95706
13116c65c74c
14806a47178
15495e32553
hex2c2bc16b6

11857041078 has 16 divisors (see below), whose sum is σ = 23836955376. Its totient is φ = 3931868160.

The previous prime is 11857041073. The next prime is 11857041083. The reversal of 11857041078 is 87014075811.

11857041078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11857041073) and next prime (11857041083).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11857041073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5118463 + ... + 5120778.

It is an arithmetic number, because the mean of its divisors is an integer number (1489809711).

Almost surely, 211857041078 is an apocalyptic number.

11857041078 is an abundant number, since it is smaller than the sum of its proper divisors (11979914298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11857041078 is a wasteful number, since it uses less digits than its factorization.

11857041078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10239439.

The product of its (nonzero) digits is 62720, while the sum is 42.

The spelling of 11857041078 in words is "eleven billion, eight hundred fifty-seven million, forty-one thousand, seventy-eight".

Divisors: 1 2 3 6 193 386 579 1158 10239241 20478482 30717723 61435446 1976173513 3952347026 5928520539 11857041078