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20702701 = 47538311
BaseRepresentation
bin100111011111…
…0010111101101
31102221210202201
41032332113231
520244441301
62015421501
7340653505
oct116762755
942853681
1020702701
1110760278
126b24891
13439b226
142a6ca05
151c3e201
hex13be5ed

20702701 has 8 divisors (see below), whose sum is σ = 21544704. Its totient is φ = 19877520.

The previous prime is 20702683. The next prime is 20702707. The reversal of 20702701 is 10720702.

20702701 = T915 + T916 + ... + T961.

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 20702701 - 29 = 20702189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20702707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1665 + ... + 6646.

It is an arithmetic number, because the mean of its divisors is an integer number (2693088).

Almost surely, 220702701 is an apocalyptic number.

It is an amenable number.

20702701 is a deficient number, since it is larger than the sum of its proper divisors (842003).

20702701 is an equidigital number, since it uses as much as digits as its factorization.

20702701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8411.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 20702701 is about 4550.0220878585. The cubic root of 20702701 is about 274.5842798575.

The spelling of 20702701 in words is "twenty million, seven hundred two thousand, seven hundred one".

Divisors: 1 47 53 2491 8311 390617 440483 20702701