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19714420 = 2251189611
BaseRepresentation
bin100101100110…
…1000101110100
31101002121002201
41023031011310
520021330140
61542314244
7326366305
oct113150564
941077081
1019714420
1110145810
126728984
13411344b
1428927ac
151ae649a
hex12cd174

19714420 has 24 divisors (see below), whose sum is σ = 45164448. Its totient is φ = 7168800.

The previous prime is 19714417. The next prime is 19714421. The reversal of 19714420 is 2441791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19714421) 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, 44586 + ... + 45025.

It is an arithmetic number, because the mean of its divisors is an integer number (1881852).

Almost surely, 219714420 is an apocalyptic number.

19714420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19714420 is an abundant number, since it is smaller than the sum of its proper divisors (25450028).

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

19714420 is a wasteful number, since it uses less digits than its factorization.

19714420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89631 (or 89629 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 19714420 is about 4440.0923413821. The cubic root of 19714420 is about 270.1435907463.

The spelling of 19714420 in words is "nineteen million, seven hundred fourteen thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 89611 179222 358444 448055 896110 985721 1792220 1971442 3942884 4928605 9857210 19714420