Search a number
-
+
74980422 = 232111921049
BaseRepresentation
bin1000111100000…
…01110001000110
312020002101210200
410132001301012
5123143333142
611235031330
71600215546
oct436016106
9166071720
1074980422
11393629a0
122113b546
13126c371a
149d5b326
1568b164c
hex4781c46

74980422 has 72 divisors (see below), whose sum is σ = 187223400. Its totient is φ = 21504960.

The previous prime is 74980397. The next prime is 74980427. The reversal of 74980422 is 22408947.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74980427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 70954 + ... + 72002.

It is an arithmetic number, because the mean of its divisors is an integer number (2600325).

Almost surely, 274980422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74980422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93611700).

74980422 is an abundant number, since it is smaller than the sum of its proper divisors (112242978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74980422 is a wasteful number, since it uses less digits than its factorization.

74980422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 74980422 is about 8659.1236277120. The cubic root of 74980422 is about 421.6796345136.

The spelling of 74980422 in words is "seventy-four million, nine hundred eighty thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 19 22 33 38 57 66 99 114 171 198 209 342 361 418 627 722 1049 1083 1254 1881 2098 2166 3147 3249 3762 3971 6294 6498 7942 9441 11539 11913 18882 19931 23078 23826 34617 35739 39862 59793 69234 71478 103851 119586 179379 207702 219241 358758 378689 438482 657723 757378 1136067 1315446 1973169 2272134 3408201 3946338 4165579 6816402 8331158 12496737 24993474 37490211 74980422