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192380421 = 31572391709
BaseRepresentation
bin10110111011101…
…11111000000101
3111101222221022210
423131313320011
5343222133141
631031214033
74524130602
oct1335677005
9441887283
10192380421
1199659292
1254517319
1330b1a08c
141b79b6a9
1511d51916
hexb777e05

192380421 has 16 divisors (see below), whose sum is σ = 259372800. Its totient is φ = 126829248.

The previous prime is 192380417. The next prime is 192380431. The reversal of 192380421 is 124083291.

It is not a de Polignac number, because 192380421 - 22 = 192380417 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192380431) 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 15 ways as a sum of consecutive naturals, for example, 111715 + ... + 113423.

It is an arithmetic number, because the mean of its divisors is an integer number (16210800).

Almost surely, 2192380421 is an apocalyptic number.

It is an amenable number.

192380421 is a deficient number, since it is larger than the sum of its proper divisors (66992379).

192380421 is a wasteful number, since it uses less digits than its factorization.

192380421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 192380421 is about 13870.1269280422. The cubic root of 192380421 is about 577.2805920511.

The spelling of 192380421 in words is "one hundred ninety-two million, three hundred eighty thousand, four hundred twenty-one".

Divisors: 1 3 157 239 471 717 1709 5127 37523 112569 268313 408451 804939 1225353 64126807 192380421