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80489216 = 2859732
BaseRepresentation
bin1001100110000…
…10101100000000
312121110021110002
410303002230000
5131101123331
611553055132
71665101303
oct463025400
9177407402
1080489216
1141485815
1222b574a8
13138a1c72
14a992b3a
1570ed9cb
hex4cc2b00

80489216 has 54 divisors (see below), whose sum is σ = 165655980. Its totient is φ = 39020544.

The previous prime is 80489209. The next prime is 80489231. The reversal of 80489216 is 61298408.

It is a self number, because there is not a number n which added to its sum of digits gives 80489216.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1102556 + ... + 1102628.

Almost surely, 280489216 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 80489216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82827990).

80489216 is an abundant number, since it is smaller than the sum of its proper divisors (85166764).

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

80489216 is an frugal number, since it uses more digits than its factorization.

80489216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 80489216 is about 8971.5782335105. The cubic root of 80489216 is about 431.7634736312.

The spelling of 80489216 in words is "eighty million, four hundred eighty-nine thousand, two hundred sixteen".

Divisors: 1 2 4 8 16 32 59 64 73 118 128 146 236 256 292 472 584 944 1168 1888 2336 3776 4307 4672 5329 7552 8614 9344 10658 15104 17228 18688 21316 34456 42632 68912 85264 137824 170528 275648 314411 341056 551296 628822 682112 1102592 1257644 1364224 2515288 5030576 10061152 20122304 40244608 80489216