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19804232 = 2372192659
BaseRepresentation
bin100101110001…
…1000001001000
31101021011022002
41023203001020
520032213412
61544250132
7330222200
oct113430110
941234262
1019804232
11101a7238
126770948
1341452a6
1428b7400
151b12dc2
hex12e3048

19804232 has 48 divisors (see below), whose sum is σ = 45486000. Its totient is φ = 8037792.

The previous prime is 19804231. The next prime is 19804237. The reversal of 19804232 is 23240891.

It is a junction number, because it is equal to n+sod(n) for n = 19804195 and 19804204.

It is not an unprimeable number, because it can be changed into a prime (19804231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6119 + ... + 8777.

It is an arithmetic number, because the mean of its divisors is an integer number (947625).

Almost surely, 219804232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19804232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22743000).

19804232 is an abundant number, since it is smaller than the sum of its proper divisors (25681768).

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

19804232 is a wasteful number, since it uses less digits than its factorization.

19804232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 19804232 is about 4450.1946024865. The cubic root of 19804232 is about 270.5531959299.

The spelling of 19804232 in words is "nineteen million, eight hundred four thousand, two hundred thirty-two".

Divisors: 1 2 4 7 8 14 19 28 38 49 56 76 98 133 152 196 266 392 532 931 1064 1862 2659 3724 5318 7448 10636 18613 21272 37226 50521 74452 101042 130291 148904 202084 260582 353647 404168 521164 707294 1042328 1414588 2475529 2829176 4951058 9902116 19804232