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19914713 = 713218843
BaseRepresentation
bin100101111110…
…1111111011001
31101110202211222
41023331333121
520044232323
61550501425
7331162250
oct113757731
941422758
1019914713
1110272245
126804875
134183670
142905797
151b359c8
hex12fdfd9

19914713 has 8 divisors (see below), whose sum is σ = 24510528. Its totient is φ = 15756624.

The previous prime is 19914707. The next prime is 19914721. The reversal of 19914713 is 31741991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19914713 - 26 = 19914649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19914773) 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, 109331 + ... + 109512.

It is an arithmetic number, because the mean of its divisors is an integer number (3063816).

Almost surely, 219914713 is an apocalyptic number.

19914713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19914713 is a deficient number, since it is larger than the sum of its proper divisors (4595815).

19914713 is a wasteful number, since it uses less digits than its factorization.

19914713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218863.

The product of its digits is 6804, while the sum is 35.

The square root of 19914713 is about 4462.5903912414. The cubic root of 19914713 is about 271.0553710108.

The spelling of 19914713 in words is "nineteen million, nine hundred fourteen thousand, seven hundred thirteen".

Divisors: 1 7 13 91 218843 1531901 2844959 19914713