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20292073 = 31743881
BaseRepresentation
bin100110101101…
…0000111101001
31102011221111021
41031122013221
520143321243
62002532441
7334323364
oct115320751
942157437
1020292073
11104aa80a
126967121
134286359
1429a30db
151bac6ed
hex135a1e9

20292073 has 8 divisors (see below), whose sum is σ = 20998656. Its totient is φ = 19588800.

The previous prime is 20292071. The next prime is 20292079. The reversal of 20292073 is 37029202.

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 20292073 - 21 = 20292071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20292071) 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, 22593 + ... + 23473.

It is an arithmetic number, because the mean of its divisors is an integer number (2624832).

Almost surely, 220292073 is an apocalyptic number.

It is an amenable number.

20292073 is a deficient number, since it is larger than the sum of its proper divisors (706583).

20292073 is an equidigital number, since it uses as much as digits as its factorization.

20292073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 20292073 is about 4504.6723521251. The cubic root of 20292073 is about 272.7567280072.

The spelling of 20292073 in words is "twenty million, two hundred ninety-two thousand, seventy-three".

Divisors: 1 31 743 881 23033 27311 654583 20292073