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194049880 = 23512793793
BaseRepresentation
bin10111001000011…
…11011101011000
3111112010202101121
423210033131120
5344134044010
631131055024
74544253043
oct1344173530
9445122347
10194049880
119a599602
1254ba1474
1331282c1b
141bab3c5a
15120813da
hexb90f758

194049880 has 32 divisors (see below), whose sum is σ = 437068800. Its totient is φ = 77538816.

The previous prime is 194049859. The next prime is 194049899. The reversal of 194049880 is 88940491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49264 + ... + 53056.

It is an arithmetic number, because the mean of its divisors is an integer number (13658400).

Almost surely, 2194049880 is an apocalyptic number.

194049880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

194049880 is an abundant number, since it is smaller than the sum of its proper divisors (243018920).

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

194049880 is a wasteful number, since it uses less digits than its factorization.

194049880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083 (or 5079 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 194049880 is about 13930.1787497505. The cubic root of 194049880 is about 578.9456469312.

The spelling of 194049880 in words is "one hundred ninety-four million, forty-nine thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1279 2558 3793 5116 6395 7586 10232 12790 15172 18965 25580 30344 37930 51160 75860 151720 4851247 9702494 19404988 24256235 38809976 48512470 97024940 194049880