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2742897 = 31948121
BaseRepresentation
bin1010011101101001110001
312011100112210
422131221301
51200233042
6134442333
732212533
oct12355161
95140483
102742897
111603863
12b033a9
13750621
14515853
15392a9c
hex29da71

2742897 has 8 divisors (see below), whose sum is σ = 3849760. Its totient is φ = 1732320.

The previous prime is 2742893. The next prime is 2742917. The reversal of 2742897 is 7982472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2742897 - 22 = 2742893 is a prime.

It is a d-powerful number, because it can be written as 211 + 7 + 45 + 219 + 87 + 93 + 76 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2742893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24004 + ... + 24117.

It is an arithmetic number, because the mean of its divisors is an integer number (481220).

22742897 is an apocalyptic number.

It is an amenable number.

2742897 is a deficient number, since it is larger than the sum of its proper divisors (1106863).

2742897 is a wasteful number, since it uses less digits than its factorization.

2742897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48143.

The product of its digits is 56448, while the sum is 39.

The square root of 2742897 is about 1656.1693753961. The cubic root of 2742897 is about 139.9812389826.

It can be divided in two parts, 27 and 42897, that added together give a palindrome (42924).

The spelling of 2742897 in words is "two million, seven hundred forty-two thousand, eight hundred ninety-seven".

Divisors: 1 3 19 57 48121 144363 914299 2742897