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3142212 = 2231773211
BaseRepresentation
bin1011111111001001000100
312220122022020
423333021010
51301022322
6151203140
735464653
oct13771104
95818266
103142212
111856877
1210764b0
138602c8
145bb19a
1542105c
hex2ff244

3142212 has 48 divisors (see below), whose sum is σ = 7906752. Its totient is φ = 967680.

The previous prime is 3142193. The next prime is 3142219. The reversal of 3142212 is 2122413.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3142191 and 3142200.

It is not an unprimeable number, because it can be changed into a prime (3142219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14787 + ... + 14997.

It is an arithmetic number, because the mean of its divisors is an integer number (164724).

Almost surely, 23142212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3142212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3953376).

3142212 is an abundant number, since it is smaller than the sum of its proper divisors (4764540).

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

3142212 is a wasteful number, since it uses less digits than its factorization.

3142212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 306 counting only the distinct ones).

The product of its digits is 96, while the sum is 15.

The square root of 3142212 is about 1772.6285566920. The cubic root of 3142212 is about 146.4688126447.

Adding to 3142212 its reverse (2122413), we get a palindrome (5264625).

The spelling of 3142212 in words is "three million, one hundred forty-two thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 17 34 51 68 73 102 146 204 211 219 292 422 438 633 844 876 1241 1266 2482 2532 3587 3723 4964 7174 7446 10761 14348 14892 15403 21522 30806 43044 46209 61612 92418 184836 261851 523702 785553 1047404 1571106 3142212