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12172633 = 116431721
BaseRepresentation
bin101110011011…
…110101011001
3211220102201021
4232123311121
511104011013
61112522441
7205315504
oct56336531
924812637
1012172633
116964530
1240b0421
1326a2755
14188c13b
151106a8d
hexb9bd59

12172633 has 8 divisors (see below), whose sum is σ = 13307616. Its totient is φ = 11042400.

The previous prime is 12172609. The next prime is 12172649. The reversal of 12172633 is 33627121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12172633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12172598 and 12172607.

It is not an unprimeable number, because it can be changed into a prime (12172133) 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, 6213 + ... + 7933.

It is an arithmetic number, because the mean of its divisors is an integer number (1663452).

Almost surely, 212172633 is an apocalyptic number.

It is an amenable number.

12172633 is a deficient number, since it is larger than the sum of its proper divisors (1134983).

12172633 is a wasteful number, since it uses less digits than its factorization.

12172633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375.

The product of its digits is 1512, while the sum is 25.

The square root of 12172633 is about 3488.9300652206. The cubic root of 12172633 is about 230.0354891677.

Adding to 12172633 its reverse (33627121), we get a palindrome (45799754).

The spelling of 12172633 in words is "twelve million, one hundred seventy-two thousand, six hundred thirty-three".

Divisors: 1 11 643 1721 7073 18931 1106603 12172633