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2742307 = 16716421
BaseRepresentation
bin1010011101100000100011
312011022201221
422131200203
51200223212
6134435511
732211031
oct12354043
95138657
102742307
111603377
12b02b97
13750289
14515551
15392807
hex29d823

2742307 has 4 divisors (see below), whose sum is σ = 2758896. Its totient is φ = 2725720.

The previous prime is 2742293. The next prime is 2742317. The reversal of 2742307 is 7032472.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2742307 is a prime.

It is a d-powerful number, because it can be written as 219 + 7 + 45 + 221 + 37 + 0 + 76 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2742317) 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, 8044 + ... + 8377.

It is an arithmetic number, because the mean of its divisors is an integer number (689724).

22742307 is an apocalyptic number.

2742307 is a deficient number, since it is larger than the sum of its proper divisors (16589).

2742307 is a wasteful number, since it uses less digits than its factorization.

2742307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16588.

The product of its (nonzero) digits is 2352, while the sum is 25.

The square root of 2742307 is about 1655.9912439382. The cubic root of 2742307 is about 139.9712015595.

Adding to 2742307 its reverse (7032472), we get a palindrome (9774779).

The spelling of 2742307 in words is "two million, seven hundred forty-two thousand, three hundred seven".

Divisors: 1 167 16421 2742307