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2742898 = 21371449
BaseRepresentation
bin1010011101101001110010
312011100112211
422131221302
51200233043
6134442334
732212534
oct12355162
95140484
102742898
111603864
12b033aa
13750622
14515854
15392a9d
hex29da72

2742898 has 4 divisors (see below), whose sum is σ = 4114350. Its totient is φ = 1371448.

The previous prime is 2742893. The next prime is 2742917. The reversal of 2742898 is 8982472.

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

It can be written as a sum of positive squares in only one way, i.e., 1570009 + 1172889 = 1253^2 + 1083^2 .

It is a d-powerful number, because it can be written as 211 + 76 + 45 + 219 + 8 + 93 + 87 .

It is a self number, because there is not a number n which added to its sum of digits gives 2742898.

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 as a sum of consecutive naturals, namely, 685723 + ... + 685726.

22742898 is an apocalyptic number.

2742898 is a deficient number, since it is larger than the sum of its proper divisors (1371452).

2742898 is a wasteful number, since it uses less digits than its factorization.

2742898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371451.

The product of its digits is 64512, while the sum is 40.

The square root of 2742898 is about 1656.1696772976. The cubic root of 2742898 is about 139.9812559940.

The spelling of 2742898 in words is "two million, seven hundred forty-two thousand, eight hundred ninety-eight".

Divisors: 1 2 1371449 2742898