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12725046 = 233713319
BaseRepresentation
bin110000100010…
…101100110110
3212221111111000
4300202230312
511224200141
61132424130
7213106155
oct60425466
925844430
1012725046
117201574
124318046
132837019
14199359c
1511b55b6
hexc22b36

12725046 has 32 divisors (see below), whose sum is σ = 28684800. Its totient is φ = 4180680.

The previous prime is 12725039. The next prime is 12725051. The reversal of 12725046 is 64052721.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2175 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (896400).

Almost surely, 212725046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12725046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14342400).

12725046 is an abundant number, since it is smaller than the sum of its proper divisors (15959754).

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

12725046 is a wasteful number, since it uses less digits than its factorization.

12725046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401 (or 3395 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12725046 is about 3567.2182439542. The cubic root of 12725046 is about 233.4639273479.

Adding to 12725046 its reverse (64052721), we get a palindrome (76777767).

The spelling of 12725046 in words is "twelve million, seven hundred twenty-five thousand, forty-six".

Divisors: 1 2 3 6 9 18 27 54 71 142 213 426 639 1278 1917 3319 3834 6638 9957 19914 29871 59742 89613 179226 235649 471298 706947 1413894 2120841 4241682 6362523 12725046