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12170030 = 254129683
BaseRepresentation
bin101110011011…
…001100101110
3211220022010212
4232123030232
511103420110
61112502422
7205305065
oct56331456
924808125
1012170030
116962584
1240aaa12
1326a1502
14188b1dc
151105e05
hexb9b32e

12170030 has 16 divisors (see below), whose sum is σ = 22441104. Its totient is φ = 4749120.

The previous prime is 12170027. The next prime is 12170033. The reversal of 12170030 is 3007121.

It is an interprime number because it is at equal distance from previous prime (12170027) and next prime (12170033).

It is a junction number, because it is equal to n+sod(n) for n = 12169987 and 12170014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12170033) 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, 14432 + ... + 15251.

It is an arithmetic number, because the mean of its divisors is an integer number (1402569).

Almost surely, 212170030 is an apocalyptic number.

12170030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12170030 is a deficient number, since it is larger than the sum of its proper divisors (10271074).

12170030 is a wasteful number, since it uses less digits than its factorization.

12170030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29731.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 12170030 is about 3488.5570082772. The cubic root of 12170030 is about 230.0190910429.

Adding to 12170030 its reverse (3007121), we get a palindrome (15177151).

The spelling of 12170030 in words is "twelve million, one hundred seventy thousand, thirty".

Divisors: 1 2 5 10 41 82 205 410 29683 59366 148415 296830 1217003 2434006 6085015 12170030