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12017130 = 2351723563
BaseRepresentation
bin101101110101…
…110111101010
3211121112101220
4231311313222
511034022010
61105322510
7204100236
oct55656752
924545356
1012017130
116868714
124036436
132649a38
14184b5c6
1510c5970
hexb75dea

12017130 has 32 divisors (see below), whose sum is σ = 30538944. Its totient is φ = 3015936.

The previous prime is 12017129. The next prime is 12017143. The reversal of 12017130 is 3171021.

It is a super-2 number, since 2×120171302 = 288822826873800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 11272 + ... + 12291.

It is an arithmetic number, because the mean of its divisors is an integer number (954342).

Almost surely, 212017130 is an apocalyptic number.

12017130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12017130 is an abundant number, since it is smaller than the sum of its proper divisors (18521814).

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

12017130 is a wasteful number, since it uses less digits than its factorization.

12017130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23590.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 12017130 is about 3466.5732359205. The cubic root of 12017130 is about 229.0517353539.

Adding to 12017130 its reverse (3171021), we get a palindrome (15188151).

The spelling of 12017130 in words is "twelve million, seventeen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 23563 47126 70689 117815 141378 235630 353445 400571 706890 801142 1201713 2002855 2403426 4005710 6008565 12017130