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8049943530 = 23251729317957
BaseRepresentation
bin1110111111101000…
…00110001111101010
3202210000101111112200
413133310012033222
5112441241143110
63410442121030
7403325251056
oct73764061752
922700344480
108049943530
113460a8a7a2
121687ab0176
139b39ab8c5
14565188c66
15321ab36c0
hex1dfd063ea

8049943530 has 96 divisors (see below), whose sum is σ = 22237894224. Its totient is φ = 2013370368.

The previous prime is 8049943487. The next prime is 8049943549. The reversal of 8049943530 is 353499408.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8031565161 + 18378369 = 89619^2 + 4287^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 439312 + ... + 457268.

Almost surely, 28049943530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8049943530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11118947112).

8049943530 is an abundant number, since it is smaller than the sum of its proper divisors (14187950694).

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

8049943530 is a wasteful number, since it uses less digits than its factorization.

8049943530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18280 (or 18277 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 8049943530 is about 89721.4775290733. The cubic root of 8049943530 is about 2004.1533297887.

The spelling of 8049943530 in words is "eight billion, forty-nine million, nine hundred forty-three thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 45 51 85 90 102 153 170 255 293 306 510 586 765 879 1465 1530 1758 2637 2930 4395 4981 5274 8790 9962 13185 14943 17957 24905 26370 29886 35914 44829 49810 53871 74715 89658 89785 107742 149430 161613 179570 224145 269355 305269 323226 448290 538710 610538 808065 915807 1526345 1616130 1831614 2747421 3052690 4579035 5261401 5494842 9158070 10522802 13737105 15784203 26307005 27474210 31568406 47352609 52614010 78921015 89443817 94705218 157842030 178887634 236763045 268331451 447219085 473526090 536662902 804994353 894438170 1341657255 1609988706 2683314510 4024971765 8049943530