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427880 = 23519563
BaseRepresentation
bin1101000011101101000
3210201221102
41220131220
5102143010
613100532
73431315
oct1503550
9721842
10427880
11272522
12187748
1311c9ab
14b1d0c
1586ba5
hex68768

427880 has 32 divisors (see below), whose sum is σ = 1015200. Its totient is φ = 161856.

The previous prime is 427879. The next prime is 427883. The reversal of 427880 is 88724.

It is not an unprimeable number, because it can be changed into a prime (427883) 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, 479 + ... + 1041.

It is an arithmetic number, because the mean of its divisors is an integer number (31725).

2427880 is an apocalyptic number.

427880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507600).

427880 is an abundant number, since it is smaller than the sum of its proper divisors (587320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

427880 is a wasteful number, since it uses less digits than its factorization.

427880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 427880 is about 654.1253702464. The cubic root of 427880 is about 75.3541766709.

The spelling of 427880 in words is "four hundred twenty-seven thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 563 760 1126 2252 2815 4504 5630 10697 11260 21394 22520 42788 53485 85576 106970 213940 427880