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192129897 = 375238513
BaseRepresentation
bin10110111001110…
…10101101101001
3111101112012200010
423130322231221
5343141124042
631022002133
74522035321
oct1334725551
9441465603
10192129897
11994a8043
1254416349
1330a6003b
141b734281
1511d0259c
hexb73ab69

192129897 has 8 divisors (see below), whose sum is σ = 256237344. Its totient is φ = 128054528.

The previous prime is 192129877. The next prime is 192129911. The reversal of 192129897 is 798921291.

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 192129897 - 210 = 192128873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (192129857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18313 + ... + 26825.

It is an arithmetic number, because the mean of its divisors is an integer number (32029668).

Almost surely, 2192129897 is an apocalyptic number.

It is an amenable number.

192129897 is a deficient number, since it is larger than the sum of its proper divisors (64107447).

192129897 is an equidigital number, since it uses as much as digits as its factorization.

192129897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16039.

The product of its digits is 163296, while the sum is 48.

The square root of 192129897 is about 13861.0929222771. The cubic root of 192129897 is about 577.0298987197.

The spelling of 192129897 in words is "one hundred ninety-two million, one hundred twenty-nine thousand, eight hundred ninety-seven".

Divisors: 1 3 7523 8513 22569 25539 64043299 192129897