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74105340 = 22354328723
BaseRepresentation
bin1000110101011…
…00000111111100
312011102221102020
410122230013330
5122432332330
611204200140
71556612361
oct432540774
9164387366
1074105340
1138915491
1220999050
131247831a
149bb0468
15678c210
hex46ac1fc

74105340 has 48 divisors (see below), whose sum is σ = 212327808. Its totient is φ = 19301184.

The previous prime is 74105279. The next prime is 74105359. The reversal of 74105340 is 4350147.

It is a self number, because there is not a number n which added to its sum of digits gives 74105340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11782 + ... + 16941.

It is an arithmetic number, because the mean of its divisors is an integer number (4423496).

Almost surely, 274105340 is an apocalyptic number.

It is an amenable number.

74105340 is an abundant number, since it is smaller than the sum of its proper divisors (138222468).

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

74105340 is a wasteful number, since it uses less digits than its factorization.

74105340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28778 (or 28776 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 74105340 is about 8608.4458527658. The cubic root of 74105340 is about 420.0327638840.

Adding to 74105340 its reverse (4350147), we get a palindrome (78455487).

The spelling of 74105340 in words is "seventy-four million, one hundred five thousand, three hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 28723 57446 86169 114892 143615 172338 287230 344676 430845 574460 861690 1235089 1723380 2470178 3705267 4940356 6175445 7410534 12350890 14821068 18526335 24701780 37052670 74105340