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508240668100 = 225211264812
BaseRepresentation
bin1110110010101011000…
…00010010010111000100
31210120212011111000201011
413121111200102113010
531311334102334400
61025252121212004
751501451253644
oct7312540222704
91716764430634
10508240668100
111865a8675400
1282600931004
1338c084b6b49
141a855858524
15d34931c8ba
hex76558125c4

508240668100 has 81 divisors (see below), whose sum is σ = 1212446078823. Its totient is φ = 184786272000.

The previous prime is 508240668059. The next prime is 508240668179. The reversal of 508240668100 is 1866042805.

The square root of 508240668100 is 712910.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 84293831556 + 423946836544 = 290334^2 + 651112^2 .

It is a super-2 number, since 2×5082406681002 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 78416860 + ... + 78423340.

Almost surely, 2508240668100 is an apocalyptic number.

508240668100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

508240668100 is the 712910-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 508240668100

508240668100 is an abundant number, since it is smaller than the sum of its proper divisors (704205410723).

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

508240668100 is an equidigital number, since it uses as much as digits as its factorization.

508240668100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12998 (or 6499 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 508240668100 in words is "five hundred eight billion, two hundred forty million, six hundred sixty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 220 242 275 484 550 605 1100 1210 2420 3025 6050 6481 12100 12962 25924 32405 64810 71291 129620 142582 162025 285164 324050 356455 648100 712910 784201 1425820 1568402 1782275 3136804 3564550 3921005 7129100 7842010 15684020 19605025 39210050 42003361 78420100 84006722 168013444 210016805 420033610 462036971 840067220 924073942 1050084025 1848147884 2100168050 2310184855 4200336100 4620369710 5082406681 9240739420 10164813362 11550924275 20329626724 23101848550 25412033405 46203697100 50824066810 101648133620 127060167025 254120334050 508240668100