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3140497 = 29108293
BaseRepresentation
bin1011111110101110010001
312220112221201
423332232101
51300443442
6151151201
735456653
oct13765621
95815851
103140497
111855558
121075501
1385c5a9
145ba6d3
154207b7
hex2feb91

3140497 has 4 divisors (see below), whose sum is σ = 3248820. Its totient is φ = 3032176.

The previous prime is 3140447. The next prime is 3140507. The reversal of 3140497 is 7940413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7940413 = 13610801.

It can be written as a sum of positive squares in 2 ways, for example, as 583696 + 2556801 = 764^2 + 1599^2 .

It is a cyclic number.

It is not a de Polignac number, because 3140497 - 27 = 3140369 is a prime.

It is a Duffinian number.

3140497 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3140407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54118 + ... + 54175.

It is an arithmetic number, because the mean of its divisors is an integer number (812205).

Almost surely, 23140497 is an apocalyptic number.

It is an amenable number.

3140497 is a deficient number, since it is larger than the sum of its proper divisors (108323).

3140497 is a wasteful number, since it uses less digits than its factorization.

3140497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108322.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 3140497 is about 1772.1447457812. The cubic root of 3140497 is about 146.4421605360.

The spelling of 3140497 in words is "three million, one hundred forty thousand, four hundred ninety-seven".

Divisors: 1 29 108293 3140497