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20272893 = 354112491
BaseRepresentation
bin100110101010…
…1011011111101
31102010222011220
41031111123331
520142213033
62002303553
7334213434
oct115253375
942128156
1020272893
1110497363
126957bb9
13427a6c4
14299a11b
151ba6bb3
hex13556fd

20272893 has 8 divisors (see below), whose sum is σ = 27082656. Its totient is φ = 13489200.

The previous prime is 20272859. The next prime is 20272897. The reversal of 20272893 is 39827202.

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

It is not a de Polignac number, because 20272893 - 216 = 20207357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20272897) 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, 4623 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (3385332).

Almost surely, 220272893 is an apocalyptic number.

It is an amenable number.

20272893 is a deficient number, since it is larger than the sum of its proper divisors (6809763).

20272893 is a wasteful number, since it uses less digits than its factorization.

20272893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13035.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 20272893 is about 4502.5429481572. The cubic root of 20272893 is about 272.6707646663.

The spelling of 20272893 in words is "twenty million, two hundred seventy-two thousand, eight hundred ninety-three".

Divisors: 1 3 541 1623 12491 37473 6757631 20272893