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121409050 = 25271918257
BaseRepresentation
bin1110011110010…
…00111000011010
322110110012220111
413033020320122
5222040042200
620014114534
73002650150
oct717107032
9273405814
10121409050
1162594464
12347aba4a
131c1cb399
14121a53d0
15a9d30ba
hex73c8e1a

121409050 has 48 divisors (see below), whose sum is σ = 271679040. Its totient is φ = 39432960.

The previous prime is 121409047. The next prime is 121409191. The reversal of 121409050 is 50904121.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2479 + ... + 15778.

It is an arithmetic number, because the mean of its divisors is an integer number (5659980).

Almost surely, 2121409050 is an apocalyptic number.

121409050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121409050 is an abundant number, since it is smaller than the sum of its proper divisors (150269990).

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

121409050 is a wasteful number, since it uses less digits than its factorization.

121409050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18295 (or 18290 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 121409050 is about 11018.5774943955. The cubic root of 121409050 is about 495.1654720059.

The spelling of 121409050 in words is "one hundred twenty-one million, four hundred nine thousand, fifty".

Divisors: 1 2 5 7 10 14 19 25 35 38 50 70 95 133 175 190 266 350 475 665 950 1330 3325 6650 18257 36514 91285 127799 182570 255598 346883 456425 638995 693766 912850 1277990 1734415 2428181 3194975 3468830 4856362 6389950 8672075 12140905 17344150 24281810 60704525 121409050