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49742197 = 3110115887
BaseRepresentation
bin1011110111000…
…0000101110101
310110121011110121
42331300011311
5100213222242
64534051541
71142541661
oct275600565
9113534417
1049742197
112609505a
12147a9bb1
13a3c7c6b
14686b8a1
154578667
hex2f70175

49742197 has 8 divisors (see below), whose sum is σ = 51858432. Its totient is φ = 47658000.

The previous prime is 49742191. The next prime is 49742227. The reversal of 49742197 is 79124794.

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

It is a cyclic number.

It is not a de Polignac number, because 49742197 - 211 = 49740149 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 (49742191) 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, 4813 + ... + 11074.

It is an arithmetic number, because the mean of its divisors is an integer number (6482304).

Almost surely, 249742197 is an apocalyptic number.

It is an amenable number.

49742197 is a deficient number, since it is larger than the sum of its proper divisors (2116235).

49742197 is a wasteful number, since it uses less digits than its factorization.

49742197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16019.

The product of its digits is 127008, while the sum is 43.

The square root of 49742197 is about 7052.8148281378. The cubic root of 49742197 is about 367.7688889344.

The spelling of 49742197 in words is "forty-nine million, seven hundred forty-two thousand, one hundred ninety-seven".

Divisors: 1 31 101 3131 15887 492497 1604587 49742197