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192085421 = 11191038923
BaseRepresentation
bin10110111001011…
…11110110101101
3111101102221122212
423130233312231
5343133213141
631021020205
74521461543
oct1334576655
9441387585
10192085421
1199477690
12543b4665
1330a45a18
141b721d93
1511ce42eb
hexb72fdad

192085421 has 16 divisors (see below), whose sum is σ = 222743040. Its totient is φ = 163807920.

The previous prime is 192085417. The next prime is 192085427. The reversal of 192085421 is 124580291.

It is a cyclic number.

It is not a de Polignac number, because 192085421 - 22 = 192085417 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 (192085427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17066 + ... + 25988.

It is an arithmetic number, because the mean of its divisors is an integer number (13921440).

Almost surely, 2192085421 is an apocalyptic number.

192085421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

192085421 is a deficient number, since it is larger than the sum of its proper divisors (30657619).

192085421 is a wasteful number, since it uses less digits than its factorization.

192085421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9056.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 192085421 is about 13859.4884826245. The cubic root of 192085421 is about 576.9853698832.

The spelling of 192085421 in words is "one hundred ninety-two million, eighty-five thousand, four hundred twenty-one".

Divisors: 1 11 19 103 209 1133 1957 8923 21527 98153 169537 919069 1864907 10109759 17462311 192085421