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3142220 = 225198269
BaseRepresentation
bin1011111111001001001100
312220122022112
423333021030
51301022340
6151203152
735464664
oct13771114
95818275
103142220
111856884
1210764b8
13860303
145bb1a4
15421065
hex2ff24c

3142220 has 24 divisors (see below), whose sum is σ = 6946800. Its totient is φ = 1190592.

The previous prime is 3142219. The next prime is 3142231. The reversal of 3142220 is 222413.

It is a junction number, because it is equal to n+sod(n) for n = 3142195 and 3142204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3755 + ... + 4514.

It is an arithmetic number, because the mean of its divisors is an integer number (289450).

Almost surely, 23142220 is an apocalyptic number.

It is an amenable number.

3142220 is an abundant number, since it is smaller than the sum of its proper divisors (3804580).

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

3142220 is a wasteful number, since it uses less digits than its factorization.

3142220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8297 (or 8295 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 3142220 is about 1772.6308132265. The cubic root of 3142220 is about 146.4689369467.

Adding to 3142220 its reverse (222413), we get a palindrome (3364633).

The spelling of 3142220 in words is "three million, one hundred forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 8269 16538 33076 41345 82690 157111 165380 314222 628444 785555 1571110 3142220