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194801740 = 22571391441
BaseRepresentation
bin10111001110001…
…11000001001100
3111120112221202021
423213013001030
5344332123430
631155135524
74553534050
oct1347070114
9446487667
10194801740
119aa62481
12552a45a4
1331487203
141bc2bc60
151217e07a
hexb9c704c

194801740 has 24 divisors (see below), whose sum is σ = 467524512. Its totient is φ = 66789120.

The previous prime is 194801723. The next prime is 194801749. The reversal of 194801740 is 47108491.

It is a junction number, because it is equal to n+sod(n) for n = 194801696 and 194801705.

It is not an unprimeable number, because it can be changed into a prime (194801749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 695581 + ... + 695860.

It is an arithmetic number, because the mean of its divisors is an integer number (19480188).

Almost surely, 2194801740 is an apocalyptic number.

194801740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194801740 is an abundant number, since it is smaller than the sum of its proper divisors (272722772).

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

194801740 is a wasteful number, since it uses less digits than its factorization.

194801740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391457 (or 1391455 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 194801740 is about 13957.1393917235. The cubic root of 194801740 is about 579.6924052713.

The spelling of 194801740 in words is "one hundred ninety-four million, eight hundred one thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1391441 2782882 5565764 6957205 9740087 13914410 19480174 27828820 38960348 48700435 97400870 194801740