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506793280 = 2657232321
BaseRepresentation
bin11110001101010…
…000110101000000
31022022121202200111
4132031100311000
52014214341110
6122142201104
715362446300
oct3615206500
91268552614
10506793280
11240087324
12121883194
1380cc31a6
144b443600
152e75ae8a
hex1e350d40

506793280 has 84 divisors (see below), whose sum is σ = 1403873748. Its totient is φ = 173752320.

The previous prime is 506793263. The next prime is 506793283. The reversal of 506793280 is 82397605.

It can be written as a sum of positive squares in 2 ways, for example, as 183656704 + 323136576 = 13552^2 + 17976^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506793283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481 + ... + 31840.

Almost surely, 2506793280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 506793280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (701936874).

506793280 is an abundant number, since it is smaller than the sum of its proper divisors (897080468).

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

506793280 is a wasteful number, since it uses less digits than its factorization.

506793280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32352 (or 32335 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 506793280 is about 22512.0696516335. The cubic root of 506793280 is about 797.2789218272.

The spelling of 506793280 in words is "five hundred six million, seven hundred ninety-three thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 98 112 140 160 196 224 245 280 320 392 448 490 560 784 980 1120 1568 1960 2240 3136 3920 7840 15680 32321 64642 129284 161605 226247 258568 323210 452494 517136 646420 904988 1034272 1131235 1292840 1583729 1809976 2068544 2262470 2585680 3167458 3619952 4524940 5171360 6334916 7239904 7918645 9049880 10342720 12669832 14479808 15837290 18099760 25339664 31674580 36199520 50679328 63349160 72399040 101358656 126698320 253396640 506793280