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194321442 = 23721412161
BaseRepresentation
bin10111001010100…
…01110000100010
3111112122112220110
423211101300202
5344221241232
631140552150
74546463550
oct1345216042
9445575813
10194321442
119a764637
12550b2656
1331349703
141bb44bd0
15120d6acc
hexb951c22

194321442 has 32 divisors (see below), whose sum is σ = 444576384. Its totient is φ = 55468800.

The previous prime is 194321389. The next prime is 194321459. The reversal of 194321442 is 244123491.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88842 + ... + 91002.

It is an arithmetic number, because the mean of its divisors is an integer number (13893012).

Almost surely, 2194321442 is an apocalyptic number.

194321442 is an abundant number, since it is smaller than the sum of its proper divisors (250254942).

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

194321442 is a wasteful number, since it uses less digits than its factorization.

194321442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4314.

The product of its digits is 6912, while the sum is 30.

The square root of 194321442 is about 13939.9225966287. The cubic root of 194321442 is about 579.2155884444.

The spelling of 194321442 in words is "one hundred ninety-four million, three hundred twenty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 2141 2161 4282 4322 6423 6483 12846 12966 14987 15127 29974 30254 44961 45381 89922 90762 4626701 9253402 13880103 27760206 32386907 64773814 97160721 194321442