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12043001420 = 22519157920071
BaseRepresentation
bin10110011011101000…
…11001111001001100
31011002022000212012122
423031310121321030
5144131002021140
65311003152112
7604302552212
oct131564317114
934068025178
1012043001420
11511aa6223a
122401215638
13119c03c558
14823612cb2
154a7416ab5
hex2cdd19e4c

12043001420 has 48 divisors (see below), whose sum is σ = 26639558400. Its totient is φ = 4560546240.

The previous prime is 12043001417. The next prime is 12043001461. The reversal of 12043001420 is 2410034021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589985 + ... + 610055.

It is an arithmetic number, because the mean of its divisors is an integer number (554990800).

Almost surely, 212043001420 is an apocalyptic number.

12043001420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12043001420 is an abundant number, since it is smaller than the sum of its proper divisors (14596556980).

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

12043001420 is a wasteful number, since it uses less digits than its factorization.

12043001420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21678 (or 21676 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12043001420 its reverse (2410034021), we get a palindrome (14453035441).

The spelling of 12043001420 in words is "twelve billion, forty-three million, one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 1579 3158 6316 7895 15790 20071 30001 31580 40142 60002 80284 100355 120004 150005 200710 300010 381349 401420 600020 762698 1525396 1906745 3813490 7626980 31692109 63384218 126768436 158460545 316921090 602150071 633842180 1204300142 2408600284 3010750355 6021500710 12043001420