Search a number
-
+
83874474 = 2331981749
BaseRepresentation
bin1001111111111…
…01001010101010
312211211021011000
410333331022222
5132432440344
612153415430
72035630665
oct477751252
9184737130
1083874474
1143388152
122410a576
13144b8a88
14b1d46dc
15756ba69
hex4ffd2aa

83874474 has 32 divisors (see below), whose sum is σ = 196200000. Its totient is φ = 26486352.

The previous prime is 83874463. The next prime is 83874487. The reversal of 83874474 is 47447838.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39849 + ... + 41900.

It is an arithmetic number, because the mean of its divisors is an integer number (6131250).

Almost surely, 283874474 is an apocalyptic number.

83874474 is an abundant number, since it is smaller than the sum of its proper divisors (112325526).

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

83874474 is a wasteful number, since it uses less digits than its factorization.

83874474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81779 (or 81773 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 83874474 is about 9158.3008249347. The cubic root of 83874474 is about 437.7336530424.

It can be divided in two parts, 83874 and 474, that added together give a palindrome (84348).

The spelling of 83874474 in words is "eighty-three million, eight hundred seventy-four thousand, four hundred seventy-four".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 513 1026 81749 163498 245247 490494 735741 1471482 1553231 2207223 3106462 4414446 4659693 9319386 13979079 27958158 41937237 83874474