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194145053 = 2913948163
BaseRepresentation
bin10111001001001…
…10101100011101
3111112022120221112
423210212230131
5344200120203
631133111405
74545130364
oct1344465435
9445276845
10194145053
119a654063
1255028565
13312b733b
141bada7db
151209e6d8
hexb926b1d

194145053 has 8 divisors (see below), whose sum is σ = 202288800. Its totient is φ = 186097968.

The previous prime is 194145037. The next prime is 194145067. The reversal of 194145053 is 350541491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194145053 - 24 = 194145037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194141053) 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, 20051 + ... + 28112.

It is an arithmetic number, because the mean of its divisors is an integer number (25286100).

Almost surely, 2194145053 is an apocalyptic number.

It is an amenable number.

194145053 is a deficient number, since it is larger than the sum of its proper divisors (8143747).

194145053 is a wasteful number, since it uses less digits than its factorization.

194145053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48331.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 194145053 is about 13933.5944034553. The cubic root of 194145053 is about 579.0402806554.

The spelling of 194145053 in words is "one hundred ninety-four million, one hundred forty-five thousand, fifty-three".

Divisors: 1 29 139 4031 48163 1396727 6694657 194145053