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19243332 = 223459393
BaseRepresentation
bin100100101101…
…0000101000100
31100012122220000
41021122011010
514411241312
61524241300
7322365003
oct111320504
940178800
1019243332
11a953889
126540230
133ca9bb4
1427acc3a
151a51adc
hex125a144

19243332 has 30 divisors (see below), whose sum is σ = 50306718. Its totient is φ = 6414336.

The previous prime is 19243331. The next prime is 19243349. The reversal of 19243332 is 23334291.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14017536 + 5225796 = 3744^2 + 2286^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 19243296 and 19243305.

It is not an unprimeable number, because it can be changed into a prime (19243331) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 29373 + ... + 30020.

Almost surely, 219243332 is an apocalyptic number.

19243332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19243332 is an abundant number, since it is smaller than the sum of its proper divisors (31063386).

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

19243332 is a wasteful number, since it uses less digits than its factorization.

19243332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59409 (or 59398 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 19243332 is about 4386.7222387564. The cubic root of 19243332 is about 267.9744722102.

The spelling of 19243332 in words is "nineteen million, two hundred forty-three thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 59393 118786 178179 237572 356358 534537 712716 1069074 1603611 2138148 3207222 4810833 6414444 9621666 19243332