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192109420 = 22510393257
BaseRepresentation
bin10110111001101…
…01101101101100
3111101111011120201
423130311231230
5343140000140
631021323244
74521621526
oct1334655554
9441434521
10192109420
1199493718
1254406524
1330a53919
141b72aa16
1511ceb49a
hexb735b6c

192109420 has 24 divisors (see below), whose sum is σ = 407350944. Its totient is φ = 76096896.

The previous prime is 192109417. The next prime is 192109429. The reversal of 192109420 is 24901291.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (192109429) 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, 44569 + ... + 48688.

It is an arithmetic number, because the mean of its divisors is an integer number (16972956).

Almost surely, 2192109420 is an apocalyptic number.

192109420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

192109420 is an abundant number, since it is smaller than the sum of its proper divisors (215241524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

192109420 is a wasteful number, since it uses less digits than its factorization.

192109420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93369 (or 93367 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 192109420 is about 13860.3542523270. The cubic root of 192109420 is about 577.0093982472.

The spelling of 192109420 in words is "one hundred ninety-two million, one hundred nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 93257 186514 373028 466285 932570 1865140 9605471 19210942 38421884 48027355 96054710 192109420