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427880873 = 7271922481
BaseRepresentation
bin11001100000001…
…111000110101001
31002211010121012202
4121200033012221
51334014141443
6110242545545
713413633050
oct3140170651
91084117182
10427880873
111aa589262
12bb3682b5
136a853b64
1440b81397
152786e7b8
hex1980f1a9

427880873 has 8 divisors (see below), whose sum is σ = 489208320. Its totient is φ = 366603840.

The previous prime is 427880867. The next prime is 427880881. The reversal of 427880873 is 378088724.

It is a happy number.

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 427880873 - 228 = 159445417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (427880863) 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, 7793 + ... + 30273.

It is an arithmetic number, because the mean of its divisors is an integer number (61151040).

Almost surely, 2427880873 is an apocalyptic number.

It is an amenable number.

427880873 is a deficient number, since it is larger than the sum of its proper divisors (61327447).

427880873 is a wasteful number, since it uses less digits than its factorization.

427880873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25207.

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 427880873 is about 20685.2815547674. The cubic root of 427880873 is about 753.5422791901.

The spelling of 427880873 in words is "four hundred twenty-seven million, eight hundred eighty thousand, eight hundred seventy-three".

Divisors: 1 7 2719 19033 22481 157367 61125839 427880873