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2742437 = 19713921
BaseRepresentation
bin1010011101100010100101
312011022220202
422131202211
51200224222
6134440245
732211305
oct12354245
95138822
102742437
111603485
12b03085
13750359
14515605
15392892
hex29d8a5

2742437 has 4 divisors (see below), whose sum is σ = 2756556. Its totient is φ = 2728320.

The previous prime is 2742427. The next prime is 2742461. The reversal of 2742437 is 7342472.

2742437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2292196 + 450241 = 1514^2 + 671^2 .

It is a cyclic number.

It is not a de Polignac number, because 2742437 - 212 = 2738341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6764 + ... + 7157.

It is an arithmetic number, because the mean of its divisors is an integer number (689139).

22742437 is an apocalyptic number.

It is an amenable number.

2742437 is a deficient number, since it is larger than the sum of its proper divisors (14119).

2742437 is a wasteful number, since it uses less digits than its factorization.

2742437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14118.

The product of its digits is 9408, while the sum is 29.

The square root of 2742437 is about 1656.0304948883. The cubic root of 2742437 is about 139.9734133187.

The spelling of 2742437 in words is "two million, seven hundred forty-two thousand, four hundred thirty-seven".

Divisors: 1 197 13921 2742437