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83374430140 = 22517212422267
BaseRepresentation
bin100110110100110000…
…0001101011110111100
321222012111200212221001
41031221200031132330
52331222323231030
6102145055220044
76011044651231
oct1155140153674
9258174625831
1083374430140
11323a4768421
12141a9b17624
137b29277241
14406cdab788
15227e874cca
hex136980d7bc

83374430140 has 24 divisors (see below), whose sum is σ = 175188110832. Its totient is φ = 33330380160.

The previous prime is 83374430099. The next prime is 83374430141. The reversal of 83374430140 is 4103447338.

It is a self number, because there is not a number n which added to its sum of digits gives 83374430140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83374430141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1176714 + ... + 1245553.

It is an arithmetic number, because the mean of its divisors is an integer number (7299504618).

Almost surely, 283374430140 is an apocalyptic number.

It is an amenable number.

83374430140 is an abundant number, since it is smaller than the sum of its proper divisors (91813680692).

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

83374430140 is a wasteful number, since it uses less digits than its factorization.

83374430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423997 (or 2423995 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

Adding to 83374430140 its reverse (4103447338), we get a palindrome (87477877478).

The spelling of 83374430140 in words is "eighty-three billion, three hundred seventy-four million, four hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1721 3442 6884 8605 17210 34420 2422267 4844534 9689068 12111335 24222670 48445340 4168721507 8337443014 16674886028 20843607535 41687215070 83374430140