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675780 = 223571609
BaseRepresentation
bin10100100111111000100
31021022222220
42210333010
5133111110
622252340
75513130
oct2447704
91238886
10675780
114217a6
122870b0
131a8791
141383c0
15d5370
hexa4fc4

675780 has 48 divisors (see below), whose sum is σ = 2163840. Its totient is φ = 154368.

The previous prime is 675751. The next prime is 675781. The reversal of 675780 is 87576.

675780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (675781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385 + ... + 1224.

It is an arithmetic number, because the mean of its divisors is an integer number (45080).

2675780 is an apocalyptic number.

675780 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

675780 is an abundant number, since it is smaller than the sum of its proper divisors (1488060).

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

675780 is a wasteful number, since it uses less digits than its factorization.

675780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628 (or 1626 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 675780 is about 822.0583920866. The cubic root of 675780 is about 87.7543077893.

The spelling of 675780 in words is "six hundred seventy-five thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 1609 3218 4827 6436 8045 9654 11263 16090 19308 22526 24135 32180 33789 45052 48270 56315 67578 96540 112630 135156 168945 225260 337890 675780