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19930632 = 2334717669
BaseRepresentation
bin100110000000…
…1111000001000
31101111120200120
41030001320020
520100240012
61551103240
7331256541
oct114017010
941446616
1019930632
11102831a7
126811b20
13418a997
14290b4c8
151b3a58c
hex1301e08

19930632 has 32 divisors (see below), whose sum is σ = 50889600. Its totient is φ = 6501824.

The previous prime is 19930609. The next prime is 19930637. The reversal of 19930632 is 23603991.

It is a junction number, because it is equal to n+sod(n) for n = 19930593 and 19930602.

It is not an unprimeable number, because it can be changed into a prime (19930637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7707 + ... + 9962.

It is an arithmetic number, because the mean of its divisors is an integer number (1590300).

Almost surely, 219930632 is an apocalyptic number.

19930632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19930632 is an abundant number, since it is smaller than the sum of its proper divisors (30958968).

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

19930632 is a wasteful number, since it uses less digits than its factorization.

19930632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17725 (or 17721 counting only the distinct ones).

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

The square root of 19930632 is about 4464.3736402770. The cubic root of 19930632 is about 271.1275752690.

The spelling of 19930632 in words is "nineteen million, nine hundred thirty thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 47 94 141 188 282 376 564 1128 17669 35338 53007 70676 106014 141352 212028 424056 830443 1660886 2491329 3321772 4982658 6643544 9965316 19930632