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3140681 = 19473517
BaseRepresentation
bin1011111110110001001001
312220120012112
423332301021
51301000211
6151152105
735460335
oct13766111
95816175
103140681
111855705
121075635
1385c6bb
145ba7c5
1542088b
hex2fec49

3140681 has 8 divisors (see below), whose sum is σ = 3377280. Its totient is φ = 2911248.

The previous prime is 3140659. The next prime is 3140693. The reversal of 3140681 is 1860413.

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 3140681 - 218 = 2878537 is a prime.

It is a super-3 number, since 3×31406813 = 92937874595233323723, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3140881) by changing a digit.

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, 866 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (422160).

Almost surely, 23140681 is an apocalyptic number.

It is an amenable number.

3140681 is a deficient number, since it is larger than the sum of its proper divisors (236599).

3140681 is a wasteful number, since it uses less digits than its factorization.

3140681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 3140681 is about 1772.1966595161. The cubic root of 3140681 is about 146.4450204688.

The spelling of 3140681 in words is "three million, one hundred forty thousand, six hundred eighty-one".

Divisors: 1 19 47 893 3517 66823 165299 3140681