Search a number
-
+
74141249 = 71319137313
BaseRepresentation
bin1000110101101…
…00111001000001
312011111202200012
410122310321001
5122440004444
611205034305
71560122150
oct432647101
9164452605
1074141249
113893a466
12209b5995
131248b780
149bbd597
156797b9e
hex46b4e41

74141249 has 32 divisors (see below), whose sum is σ = 97063680. Its totient is φ = 54991872.

The previous prime is 74141227. The next prime is 74141257. The reversal of 74141249 is 94214147.

It is a de Polignac number, because none of the positive numbers 2k-74141249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74141219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 236717 + ... + 237029.

It is an arithmetic number, because the mean of its divisors is an integer number (3033240).

Almost surely, 274141249 is an apocalyptic number.

It is an amenable number.

74141249 is a deficient number, since it is larger than the sum of its proper divisors (22922431).

74141249 is a wasteful number, since it uses less digits than its factorization.

74141249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489.

The product of its digits is 8064, while the sum is 32.

The square root of 74141249 is about 8610.5312844214. The cubic root of 74141249 is about 420.1005975963.

The spelling of 74141249 in words is "seventy-four million, one hundred forty-one thousand, two hundred forty-nine".

Divisors: 1 7 13 19 91 133 137 247 313 959 1729 1781 2191 2603 4069 5947 12467 18221 28483 33839 41629 42881 77311 236873 300167 541177 557453 814739 3902171 5703173 10591607 74141249