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80885568 = 263421279
BaseRepresentation
bin1001101001000…
…11011101000000
312122012102010210
410310203131000
5131201314233
612005354120
72001341661
oct464433500
9178172123
1080885568
1141726585
1223108940
13139b04aa
14aa57368
15717b163
hex4d23740

80885568 has 28 divisors (see below), whose sum is σ = 214010240. Its totient is φ = 26961792.

The previous prime is 80885531. The next prime is 80885599. The reversal of 80885568 is 86558808.

It is a super-2 number, since 2×808855682 = 13084950221365248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 3 ways as a sum of consecutive naturals, for example, 210448 + ... + 210831.

Almost surely, 280885568 is an apocalyptic number.

It is an amenable number.

80885568 is an abundant number, since it is smaller than the sum of its proper divisors (133124672).

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

80885568 is a wasteful number, since it uses less digits than its factorization.

80885568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421294 (or 421284 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 48.

The square root of 80885568 is about 8993.6404197633. The cubic root of 80885568 is about 432.4710225944.

The spelling of 80885568 in words is "eighty million, eight hundred eighty-five thousand, five hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 421279 842558 1263837 1685116 2527674 3370232 5055348 6740464 10110696 13480928 20221392 26961856 40442784 80885568