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3140270 = 257113397
BaseRepresentation
bin1011111110101010101110
312220112122022
423332222232
51300442040
6151150142
735456210
oct13765256
95815568
103140270
111855371
121075352
1385c463
145ba5b0
154206b5
hex2feaae

3140270 has 32 divisors (see below), whose sum is σ = 6533568. Its totient is φ = 1064448.

The previous prime is 3140251. The next prime is 3140273. The reversal of 3140270 is 720413.

It is a happy number.

It is a super-2 number, since 2×31402702 = 19722591345800, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140273) 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, 7712 + ... + 8108.

It is an arithmetic number, because the mean of its divisors is an integer number (204174).

Almost surely, 23140270 is an apocalyptic number.

3140270 is an abundant number, since it is smaller than the sum of its proper divisors (3393298).

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

3140270 is a wasteful number, since it uses less digits than its factorization.

3140270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 3140270 is about 1772.0806979368. The cubic root of 3140270 is about 146.4386320954.

Adding to 3140270 its reverse (720413), we get a palindrome (3860683).

The spelling of 3140270 in words is "three million, one hundred forty thousand, two hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 113 226 397 565 791 794 1130 1582 1985 2779 3955 3970 5558 7910 13895 27790 44861 89722 224305 314027 448610 628054 1570135 3140270