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80450448 = 24313229563
BaseRepresentation
bin1001100101110…
…01001110010000
312121101022021020
410302321032100
5131043403243
611552155440
71664550261
oct462711620
9177338236
1080450448
1141459681
1222b38b80
131388a420
14a982968
1570e2283
hex4cb9390

80450448 has 80 divisors (see below), whose sum is σ = 225193920. Its totient is φ = 24602112.

The previous prime is 80450441. The next prime is 80450467. The reversal of 80450448 is 84405408.

It is not an unprimeable number, because it can be changed into a prime (80450441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142615 + ... + 143177.

It is an arithmetic number, because the mean of its divisors is an integer number (2814924).

Almost surely, 280450448 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 80450448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112596960).

80450448 is an abundant number, since it is smaller than the sum of its proper divisors (144743472).

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

80450448 is a wasteful number, since it uses less digits than its factorization.

80450448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 80450448 is about 8969.4173723827. The cubic root of 80450448 is about 431.6941422131.

The spelling of 80450448 in words is "eighty million, four hundred fifty thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 229 312 458 563 624 687 916 1126 1374 1689 1832 2252 2748 2977 3378 3664 4504 5496 5954 6756 7319 8931 9008 10992 11908 13512 14638 17862 21957 23816 27024 29276 35724 43914 47632 58552 71448 87828 117104 128927 142896 175656 257854 351312 386781 515708 773562 1031416 1547124 1676051 2062832 3094248 3352102 5028153 6188496 6704204 10056306 13408408 20112612 26816816 40225224 80450448