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12004786752 = 263723734487
BaseRepresentation
bin10110010111000101…
…01000001001000000
31010222122010100112120
423023202220021000
5144041211134002
65303120124240
7603330001200
oct131342501100
933878110476
1012004786752
115100430a72
1223b0466680
13119414c51a
1481c506400
154a3db8cbc
hex2cb8a8240

12004786752 has 168 divisors, whose sum is σ = 37948112064. Its totient is φ = 3337141248.

The previous prime is 12004786747. The next prime is 12004786769. The reversal of 12004786752 is 25768740021.

It is a tau number, because it is divible by the number of its divisors (168).

It is a super-2 number, since 2×120047867522 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330853 + ... + 365339.

Almost surely, 212004786752 is an apocalyptic number.

12004786752 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 12004786752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18974056032).

12004786752 is an abundant number, since it is smaller than the sum of its proper divisors (25943325312).

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

12004786752 is a wasteful number, since it uses less digits than its factorization.

12004786752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34553 (or 34536 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 12004786752 in words is "twelve billion, four million, seven hundred eighty-six thousand, seven hundred fifty-two".