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12079455885 = 35571420277
BaseRepresentation
bin10110011111111110…
…11101111010001101
31011011211121221100000
423033333131322031
5144214320042020
65314344354513
7605224452360
oct131777357215
934154557300
1012079455885
1151395a0aa2
122411475a39
1311a6764343
148283c20d7
154aa718090
hex2cffdde8d

12079455885 has 48 divisors (see below), whose sum is σ = 24815097216. Its totient is φ = 5522033088.

The previous prime is 12079455821. The next prime is 12079455889. The reversal of 12079455885 is 58855497021.

12079455885 is a `hidden beast` number, since 1 + 2 + 0 + 7 + 9 + 4 + 558 + 85 = 666.

It is not a de Polignac number, because 12079455885 - 26 = 12079455821 is a prime.

It is a super-2 number, since 2×120794558852 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12079455889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 701634 + ... + 718643.

It is an arithmetic number, because the mean of its divisors is an integer number (516981192).

Almost surely, 212079455885 is an apocalyptic number.

12079455885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12079455885 is an abundant number, since it is smaller than the sum of its proper divisors (12735641331).

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

12079455885 is an equidigital number, since it uses as much as digits as its factorization.

12079455885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420304 (or 1420292 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 12079455885 in words is "twelve billion, seventy-nine million, four hundred fifty-five thousand, eight hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 81 105 135 189 243 315 405 567 945 1215 1701 2835 8505 1420277 4260831 7101385 9941939 12782493 21304155 29825817 38347479 49709695 63912465 89477451 115042437 149129085 191737395 268432353 345127311 447387255 575212185 805297059 1342161765 1725636555 2415891177 4026485295 12079455885