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12017380 = 2252272647
BaseRepresentation
bin101101110101…
…111011100100
3211121112202011
4231311323210
511034024010
61105324004
7204101044
oct55657344
924545664
1012017380
116868921
124036604
132649b9b
14184b724
1510c5a8a
hexb75ee4

12017380 has 24 divisors (see below), whose sum is σ = 25357248. Its totient is φ = 4783968.

The previous prime is 12017371. The next prime is 12017381. The reversal of 12017380 is 8371021.

It is not an unprimeable number, because it can be changed into a prime (12017381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3217 + ... + 5863.

It is an arithmetic number, because the mean of its divisors is an integer number (1056552).

Almost surely, 212017380 is an apocalyptic number.

12017380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12017380 is an abundant number, since it is smaller than the sum of its proper divisors (13339868).

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

12017380 is a wasteful number, since it uses less digits than its factorization.

12017380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883 (or 2881 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 12017380 is about 3466.6092943970. The cubic root of 12017380 is about 229.0533237125.

The spelling of 12017380 in words is "twelve million, seventeen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 227 454 908 1135 2270 2647 4540 5294 10588 13235 26470 52940 600869 1201738 2403476 3004345 6008690 12017380