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480690 = 232572109
BaseRepresentation
bin1110101010110110010
3220102101100
41311112302
5110340230
614145230
74041300
oct1652662
9812340
10480690
112a9171
121b2216
1313aa42
14c7270
1597660
hex755b2

480690 has 72 divisors (see below), whose sum is σ = 1467180. Its totient is φ = 108864.

The previous prime is 480661. The next prime is 480707. The reversal of 480690 is 96084.

480690 is a nontrivial binomial coefficient, being equal to C(981, 2).

It can be written as a sum of positive squares in 2 ways, for example, as 480249 + 441 = 693^2 + 21^2 .

It is a super-3 number, since 3×4806903 = 333208841737527000, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 480690.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4356 + ... + 4464.

2480690 is an apocalyptic number.

480690 is the 980-th triangular number.

It is a practical number, because each smaller number is the sum of distinct divisors of 480690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733590).

480690 is an abundant number, since it is smaller than the sum of its proper divisors (986490).

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

480690 is a wasteful number, since it uses less digits than its factorization.

480690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 480690 is about 693.3181088072. The cubic root of 480690 is about 78.3348523422.

The spelling of 480690 in words is "four hundred eighty thousand, six hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 49 63 70 90 98 105 109 126 147 210 218 245 294 315 327 441 490 545 630 654 735 763 882 981 1090 1470 1526 1635 1962 2205 2289 3270 3815 4410 4578 4905 5341 6867 7630 9810 10682 11445 13734 16023 22890 26705 32046 34335 48069 53410 68670 80115 96138 160230 240345 480690