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520492080 = 243519114143
BaseRepresentation
bin11111000001100…
…001010000110000
31100021101201220110
4133001201100300
52031221221310
6123351541320
715620052423
oct3701412060
91307351813
10520492080
11247893449
1212638a840
1383aab4a4
144d1ab9ba
1530a64d20
hex1f061430

520492080 has 80 divisors (see below), whose sum is σ = 1698462720. Its totient is φ = 131491584.

The previous prime is 520492079. The next prime is 520492103. The reversal of 520492080 is 80294025.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 52512 + ... + 61631.

It is an arithmetic number, because the mean of its divisors is an integer number (21230784).

Almost surely, 2520492080 is an apocalyptic number.

It is an amenable number.

520492080 is an abundant number, since it is smaller than the sum of its proper divisors (1177970640).

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

520492080 is a wasteful number, since it uses less digits than its factorization.

520492080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114178 (or 114172 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 520492080 is about 22814.2955183806. The cubic root of 520492080 is about 804.3987279952.

The spelling of 520492080 in words is "five hundred twenty million, four hundred ninety-two thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 38 40 48 57 60 76 80 95 114 120 152 190 228 240 285 304 380 456 570 760 912 1140 1520 2280 4560 114143 228286 342429 456572 570715 684858 913144 1141430 1369716 1712145 1826288 2168717 2282860 2739432 3424290 4337434 4565720 5478864 6506151 6848580 8674868 9131440 10843585 13012302 13697160 17349736 21687170 26024604 27394320 32530755 34699472 43374340 52049208 65061510 86748680 104098416 130123020 173497360 260246040 520492080