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194074142 = 21713143573
BaseRepresentation
bin10111001000101…
…01011000011110
3111112011222200012
423210111120132
5344140333032
631131403222
74544413553
oct1344253036
9445158605
10194074142
119a605859
1254bb3512
1331290c92
141babca2a
15120886b2
hexb91561e

194074142 has 16 divisors (see below), whose sum is σ = 310595472. Its totient is φ = 90629760.

The previous prime is 194074129. The next prime is 194074147. The reversal of 194074142 is 241470491.

194074142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 194074099 and 194074108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194074147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17333 + ... + 26240.

It is an arithmetic number, because the mean of its divisors is an integer number (19412217).

Almost surely, 2194074142 is an apocalyptic number.

194074142 is a deficient number, since it is larger than the sum of its proper divisors (116521330).

194074142 is a wasteful number, since it uses less digits than its factorization.

194074142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43723.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 194074142 is about 13931.0495656286. The cubic root of 194074142 is about 578.9697743943.

The spelling of 194074142 in words is "one hundred ninety-four million, seventy-four thousand, one hundred forty-two".

Divisors: 1 2 17 34 131 262 2227 4454 43573 87146 740741 1481482 5708063 11416126 97037071 194074142