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194044940 = 2259702247
BaseRepresentation
bin10111001000011…
…10010000001100
3111112010111121122
423210032100030
5344133414230
631131020112
74544232455
oct1344162014
9445114548
10194044940
119a595921
1254b9a638
13312808bb
141bab212c
151207ebe5
hexb90e40c

194044940 has 12 divisors (see below), whose sum is σ = 407494416. Its totient is φ = 77617968.

The previous prime is 194044913. The next prime is 194044957. The reversal of 194044940 is 49440491.

It is a self number, because there is not a number n which added to its sum of digits gives 194044940.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4851104 + ... + 4851143.

It is an arithmetic number, because the mean of its divisors is an integer number (33957868).

Almost surely, 2194044940 is an apocalyptic number.

194044940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194044940 is an abundant number, since it is smaller than the sum of its proper divisors (213449476).

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

194044940 is a wasteful number, since it uses less digits than its factorization.

194044940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9702256 (or 9702254 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 194044940 is about 13930.0014357501. The cubic root of 194044940 is about 578.9407340780.

The spelling of 194044940 in words is "one hundred ninety-four million, forty-four thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 9702247 19404494 38808988 48511235 97022470 194044940