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49742194 = 224871097
BaseRepresentation
bin1011110111000…
…0000101110010
310110121011110111
42331300011302
5100213222234
64534051534
71142541655
oct275600562
9113534414
1049742194
1126095057
12147a9baa
13a3c7c68
14686b89c
154578664
hex2f70172

49742194 has 4 divisors (see below), whose sum is σ = 74613294. Its totient is φ = 24871096.

The previous prime is 49742191. The next prime is 49742227. The reversal of 49742194 is 49124794.

49742194 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, and also an emirpimes, since its reverse is a distinct semiprime: 49124794 = 224562397.

It can be written as a sum of positive squares in only one way, i.e., 27699169 + 22043025 = 5263^2 + 4695^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (49742191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12435547 + ... + 12435550.

Almost surely, 249742194 is an apocalyptic number.

49742194 is a deficient number, since it is larger than the sum of its proper divisors (24871100).

49742194 is a wasteful number, since it uses less digits than its factorization.

49742194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24871099.

The product of its digits is 72576, while the sum is 40.

The square root of 49742194 is about 7052.8146154567. The cubic root of 49742194 is about 367.7688815409.

The spelling of 49742194 in words is "forty-nine million, seven hundred forty-two thousand, one hundred ninety-four".

Divisors: 1 2 24871097 49742194