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358020 = 223451317
BaseRepresentation
bin1010111011010000100
3200012010000
41113122010
542424040
611401300
73020535
oct1273204
9605100
10358020
11224a93
12153230
13c6c60
149468c
1571130
hex57684

358020 has 120 divisors (see below), whose sum is σ = 1280664. Its totient is φ = 82944.

The previous prime is 357997. The next prime is 358031. The reversal of 358020 is 20853.

It can be written as a sum of positive squares in 4 ways, for example, as 26244 + 331776 = 162^2 + 576^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 357984 and 358002.

It is a congruent number.

It is an unprimeable number.

358020 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21052 + ... + 21068.

2358020 is an apocalyptic number.

358020 is a gapful number since it is divisible by the number (30) 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 358020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640332).

358020 is an abundant number, since it is smaller than the sum of its proper divisors (922644).

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

358020 is a wasteful number, since it uses less digits than its factorization.

358020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 358020 is about 598.3477249894. The cubic root of 358020 is about 71.0072068331.

Adding to 358020 its reverse (20853), we get a palindrome (378873).

It can be divided in two parts, 3580 and 20, that added together give a square (3600 = 602).

The spelling of 358020 in words is "three hundred fifty-eight thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 13 15 17 18 20 26 27 30 34 36 39 45 51 52 54 60 65 68 78 81 85 90 102 108 117 130 135 153 156 162 170 180 195 204 221 234 255 260 270 306 324 340 351 390 405 442 459 468 510 540 585 612 663 702 765 780 810 884 918 1020 1053 1105 1170 1326 1377 1404 1530 1620 1755 1836 1989 2106 2210 2295 2340 2652 2754 3060 3315 3510 3978 4212 4420 4590 5265 5508 5967 6630 6885 7020 7956 9180 9945 10530 11934 13260 13770 17901 19890 21060 23868 27540 29835 35802 39780 59670 71604 89505 119340 179010 358020