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11888311764 = 2237163868267
BaseRepresentation
bin10110001001001100…
…10011110111010100
31010200111221210220010
423010212103313110
5143321401434024
65243355440220
7600413661030
oct130446236724
933614853803
1011888311764
11505070764a
122379456070
131175c8ac04
1480ac671c0
15498a5cb29
hex2c4993dd4

11888311764 has 48 divisors (see below), whose sum is σ = 31896693248. Its totient is φ = 3375818208.

The previous prime is 11888311733. The next prime is 11888311801. The reversal of 11888311764 is 46711388811.

11888311764 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420442 + ... + 447825.

Almost surely, 211888311764 is an apocalyptic number.

11888311764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11888311764 is an abundant number, since it is smaller than the sum of its proper divisors (20008381484).

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

11888311764 is a wasteful number, since it uses less digits than its factorization.

11888311764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868444 (or 868442 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The spelling of 11888311764 in words is "eleven billion, eight hundred eighty-eight million, three hundred eleven thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 163 326 489 652 978 1141 1956 2282 3423 4564 6846 13692 868267 1736534 2604801 3473068 5209602 6077869 10419204 12155738 18233607 24311476 36467214 72934428 141527521 283055042 424582563 566110084 849165126 990692647 1698330252 1981385294 2972077941 3962770588 5944155882 11888311764