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3135081 = 31045027
BaseRepresentation
bin1011111101011001101001
312220021112010
423331121221
51300310311
6151110133
735435115
oct13753151
95807463
103135081
111851484
121072349
13859ca1
145b8745
1541dda6
hex2fd669

3135081 has 4 divisors (see below), whose sum is σ = 4180112. Its totient is φ = 2090052.

The previous prime is 3135079. The next prime is 3135113. The reversal of 3135081 is 1805313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1805313 = 3601771.

It is not a de Polignac number, because 3135081 - 21 = 3135079 is a prime.

It is a super-2 number, since 2×31350812 = 19657465753122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3135031) 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, 522511 + ... + 522516.

It is an arithmetic number, because the mean of its divisors is an integer number (1045028).

Almost surely, 23135081 is an apocalyptic number.

It is an amenable number.

3135081 is a deficient number, since it is larger than the sum of its proper divisors (1045031).

3135081 is a wasteful number, since it uses less digits than its factorization.

3135081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045030.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 3135081 is about 1770.6159945059. The cubic root of 3135081 is about 146.3579289515.

The spelling of 3135081 in words is "three million, one hundred thirty-five thousand, eighty-one".

Divisors: 1 3 1045027 3135081