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65076816 = 24371711393
BaseRepresentation
bin1111100000111…
…1111001010000
311112110020121110
43320033321100
5113124424231
610242453320
71420100220
oct370177120
9145406543
1065076816
11338091a2
1219964240
13106369bc
148900080
155aa7046
hex3e0fe50

65076816 has 80 divisors (see below), whose sum is σ = 203451264. Its totient is φ = 17498112.

The previous prime is 65076787. The next prime is 65076853. The reversal of 65076816 is 61867056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16 + ... + 11408.

Almost surely, 265076816 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 65076816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101725632).

65076816 is an abundant number, since it is smaller than the sum of its proper divisors (138374448).

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

65076816 is a wasteful number, since it uses less digits than its factorization.

65076816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428 (or 11422 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 65076816 is about 8067.0202677321. The cubic root of 65076816 is about 402.2309012346.

The spelling of 65076816 in words is "sixty-five million, seventy-six thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 7 8 12 14 16 17 21 24 28 34 42 48 51 56 68 84 102 112 119 136 168 204 238 272 336 357 408 476 714 816 952 1428 1904 2856 5712 11393 22786 34179 45572 68358 79751 91144 136716 159502 182288 193681 239253 273432 319004 387362 478506 546864 581043 638008 774724 957012 1162086 1276016 1355767 1549448 1914024 2324172 2711534 3098896 3828048 4067301 4648344 5423068 8134602 9296688 10846136 16269204 21692272 32538408 65076816