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194871950 = 25271342829
BaseRepresentation
bin10111001110110…
…00001010001110
3111120200112001122
423213120022032
5344341400300
631200440542
74554245540
oct1347301216
9446615048
10194871950
11a00001a9
1255319152
13314b0160
141bc49690
1512194c85
hexb9d828e

194871950 has 48 divisors (see below), whose sum is σ = 446117280. Its totient is φ = 61672320.

The previous prime is 194871913. The next prime is 194871953. The reversal of 194871950 is 59178491.

194871950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194871953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16865 + ... + 25964.

It is an arithmetic number, because the mean of its divisors is an integer number (9294110).

Almost surely, 2194871950 is an apocalyptic number.

194871950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

194871950 is an abundant number, since it is smaller than the sum of its proper divisors (251245330).

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

194871950 is a wasteful number, since it uses less digits than its factorization.

194871950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42861 (or 42856 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 194871950 is about 13959.6543653487. The cubic root of 194871950 is about 579.7620407121.

The spelling of 194871950 in words is "one hundred ninety-four million, eight hundred seventy-one thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 13 14 25 26 35 50 65 70 91 130 175 182 325 350 455 650 910 2275 4550 42829 85658 214145 299803 428290 556777 599606 1070725 1113554 1499015 2141450 2783885 2998030 3897439 5567770 7495075 7794878 13919425 14990150 19487195 27838850 38974390 97435975 194871950