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415504540 = 2251119107929
BaseRepresentation
bin11000110001000…
…001100010011100
31001221211211002001
4120301001202130
51322332121130
6105121412044
713203505333
oct3061014234
91057754061
10415504540
111a35a5790
12b719a024
136810c799
143d27cd1a
15267276ca
hex18c4189c

415504540 has 96 divisors (see below), whose sum is σ = 1012435200. Its totient is φ = 141649920.

The previous prime is 415504513. The next prime is 415504601. The reversal of 415504540 is 45405514.

It is a super-2 number, since 2×4155045402 = 345288045521223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 415504499 and 415504508.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 446796 + ... + 447724.

It is an arithmetic number, because the mean of its divisors is an integer number (10546200).

Almost surely, 2415504540 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 415504540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506217600).

415504540 is an abundant number, since it is smaller than the sum of its proper divisors (596930660).

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

415504540 is a wasteful number, since it uses less digits than its factorization.

415504540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 415504540 is about 20383.9284731869. The cubic root of 415504540 is about 746.2057498497.

The spelling of 415504540 in words is "four hundred fifteen million, five hundred four thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 19 20 22 38 44 55 76 95 107 110 190 209 214 220 380 418 428 535 836 929 1045 1070 1177 1858 2033 2090 2140 2354 3716 4066 4180 4645 4708 5885 8132 9290 10165 10219 11770 17651 18580 20330 20438 22363 23540 35302 40660 40876 44726 51095 70604 88255 89452 99403 102190 111815 176510 194161 198806 204380 223630 353020 388322 397612 447260 497015 776644 970805 994030 1093433 1888657 1941610 1988060 2186866 3777314 3883220 4373732 5467165 7554628 9443285 10934330 18886570 20775227 21868660 37773140 41550454 83100908 103876135 207752270 415504540