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11871240192 = 21432723153
BaseRepresentation
bin10110000111001010…
…01100000000000000
31010122022211111002200
423003211030000000
5143303014141232
65241545513200
7600115606500
oct130345140000
933568744080
1011871240192
115042007509
1223737a2800
1311725916a6
148088a1a00
154972d977c
hex2c394c000

11871240192 has 540 divisors, whose sum is σ = 41956439616. Its totient is φ = 3220439040.

The previous prime is 11871240181. The next prime is 11871240193. The reversal of 11871240192 is 29104217811.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (11871240193) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 223985638 + ... + 223985690.

Almost surely, 211871240192 is an apocalyptic number.

11871240192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11871240192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20978219808).

11871240192 is an abundant number, since it is smaller than the sum of its proper divisors (30085199424).

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

11871240192 is an equidigital number, since it uses as much as digits as its factorization.

11871240192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The spelling of 11871240192 in words is "eleven billion, eight hundred seventy-one million, two hundred forty thousand, one hundred ninety-two".