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20746113 = 36915371
BaseRepresentation
bin100111100100…
…0111110000001
31110001000022120
41033020332001
520302333423
62020354453
7341224203
oct117107601
943030276
1020746113
111078a953
126b45a29
1343b4c0b
142a80773
151c4bee3
hex13c8f81

20746113 has 4 divisors (see below), whose sum is σ = 27661488. Its totient is φ = 13830740.

The previous prime is 20746109. The next prime is 20746127. The reversal of 20746113 is 31164702.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20746113 - 22 = 20746109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20746183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3457683 + ... + 3457688.

It is an arithmetic number, because the mean of its divisors is an integer number (6915372).

Almost surely, 220746113 is an apocalyptic number.

It is an amenable number.

20746113 is a deficient number, since it is larger than the sum of its proper divisors (6915375).

20746113 is an equidigital number, since it uses as much as digits as its factorization.

20746113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915374.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20746113 is about 4554.7901159109. The cubic root of 20746113 is about 274.7760733582.

The spelling of 20746113 in words is "twenty million, seven hundred forty-six thousand, one hundred thirteen".

Divisors: 1 3 6915371 20746113