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12570066 = 234312503
BaseRepresentation
bin101111111100…
…110111010010
3212122121220000
4233330313102
511204220231
61125230430
7211562265
oct57746722
925577800
1012570066
117106093
124262416
1327b1612
141952cdc
1511846e6
hexbfcdd2

12570066 has 40 divisors (see below), whose sum is σ = 29086464. Its totient is φ = 4053240.

The previous prime is 12570043. The next prime is 12570073. The reversal of 12570066 is 66007521.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3771 + ... + 6273.

Almost surely, 212570066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12570066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14543232).

12570066 is an abundant number, since it is smaller than the sum of its proper divisors (16516398).

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

12570066 is a wasteful number, since it uses less digits than its factorization.

12570066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548 (or 2539 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 12570066 is about 3545.4288880191. The cubic root of 12570066 is about 232.5122574183.

Adding to 12570066 its reverse (66007521), we get a palindrome (78577587).

The spelling of 12570066 in words is "twelve million, five hundred seventy thousand, sixty-six".

Divisors: 1 2 3 6 9 18 27 31 54 62 81 93 162 186 279 558 837 1674 2503 2511 5006 5022 7509 15018 22527 45054 67581 77593 135162 155186 202743 232779 405486 465558 698337 1396674 2095011 4190022 6285033 12570066