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19690332 = 22331411291
BaseRepresentation
bin100101100011…
…1001101011100
31101001101001120
41023013031130
520020042312
61542010540
7326236134
oct113071534
941041046
1019690332
1110129702
126716a50
1341054ac
142887ac4
151ade28c
hex12c735c

19690332 has 48 divisors (see below), whose sum is σ = 48620544. Its totient is φ = 6192000.

The previous prime is 19690331. The next prime is 19690337. The reversal of 19690332 is 23309691.

It is a junction number, because it is equal to n+sod(n) for n = 19690293 and 19690302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19690331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14607 + ... + 15897.

It is an arithmetic number, because the mean of its divisors is an integer number (1012928).

Almost surely, 219690332 is an apocalyptic number.

19690332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19690332 is an abundant number, since it is smaller than the sum of its proper divisors (28930212).

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

19690332 is a wasteful number, since it uses less digits than its factorization.

19690332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 19690332 is about 4437.3789560956. The cubic root of 19690332 is about 270.0335212153.

The spelling of 19690332 in words is "nineteen million, six hundred ninety thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 31 41 62 82 93 123 124 164 186 246 372 492 1271 1291 2542 2582 3813 3873 5084 5164 7626 7746 15252 15492 40021 52931 80042 105862 120063 158793 160084 211724 240126 317586 480252 635172 1640861 3281722 4922583 6563444 9845166 19690332