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20716441 = 198912251
BaseRepresentation
bin100111100000…
…1101110011001
31102222111121121
41033001232121
520300411231
62020005241
7341041534
oct117015631
942874547
1020716441
111076a629
126b30821
1343a4565
142a73a1b
151c43311
hex13c1b99

20716441 has 8 divisors (see below), whose sum is σ = 22053600. Its totient is φ = 19404000.

The previous prime is 20716429. The next prime is 20716453. The reversal of 20716441 is 14461702.

It is an interprime number because it is at equal distance from previous prime (20716429) and next prime (20716453).

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

It is a cyclic number.

It is not a de Polignac number, because 20716441 - 27 = 20716313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20716141) 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 7 ways as a sum of consecutive naturals, for example, 4435 + ... + 7816.

It is an arithmetic number, because the mean of its divisors is an integer number (2756700).

Almost surely, 220716441 is an apocalyptic number.

It is an amenable number.

20716441 is a deficient number, since it is larger than the sum of its proper divisors (1337159).

20716441 is a wasteful number, since it uses less digits than its factorization.

20716441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12359.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20716441 is about 4551.5317202015. The cubic root of 20716441 is about 274.6450119277.

The spelling of 20716441 in words is "twenty million, seven hundred sixteen thousand, four hundred forty-one".

Divisors: 1 19 89 1691 12251 232769 1090339 20716441