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192120973 = 1117465543
BaseRepresentation
bin10110111001110…
…00100010001101
3111101111202102121
423130320202031
5343140332343
631021452541
74522000312
oct1334704215
9441452377
10192120973
11994a1370
1254411151
1330a58c65
141b730d09
1511ceeaed
hexb73888d

192120973 has 4 divisors (see below), whose sum is σ = 209586528. Its totient is φ = 174655420.

The previous prime is 192120953. The next prime is 192120977. The reversal of 192120973 is 379021291.

It is a happy number.

192120973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 192120973 - 25 = 192120941 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 (192120977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8732761 + ... + 8732782.

It is an arithmetic number, because the mean of its divisors is an integer number (52396632).

Almost surely, 2192120973 is an apocalyptic number.

It is an amenable number.

192120973 is a deficient number, since it is larger than the sum of its proper divisors (17465555).

192120973 is a wasteful number, since it uses less digits than its factorization.

192120973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17465554.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 192120973 is about 13860.7710103010. The cubic root of 192120973 is about 577.0209646693.

The spelling of 192120973 in words is "one hundred ninety-two million, one hundred twenty thousand, nine hundred seventy-three".

Divisors: 1 11 17465543 192120973