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3140161 = 43103709
BaseRepresentation
bin1011111110101001000001
312220112111021
423332221001
51300441121
6151145441
735455663
oct13765101
95815437
103140161
111855282
121075281
1385c3ab
145ba533
15420641
hex2fea41

3140161 has 8 divisors (see below), whose sum is σ = 3248960. Its totient is φ = 3033072.

The previous prime is 3140147. The next prime is 3140183. The reversal of 3140161 is 1610413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3140161 - 217 = 3009089 is a prime.

It is a super-2 number, since 2×31401612 = 19721222211842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3140131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4075 + ... + 4783.

It is an arithmetic number, because the mean of its divisors is an integer number (406120).

Almost surely, 23140161 is an apocalyptic number.

It is an amenable number.

3140161 is a deficient number, since it is larger than the sum of its proper divisors (108799).

3140161 is a wasteful number, since it uses less digits than its factorization.

3140161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3140161 is about 1772.0499428628. The cubic root of 3140161 is about 146.4369377617.

Adding to 3140161 its reverse (1610413), we get a palindrome (4750574).

The spelling of 3140161 in words is "three million, one hundred forty thousand, one hundred sixty-one".

Divisors: 1 43 103 709 4429 30487 73027 3140161