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80622816 = 2533127091
BaseRepresentation
bin1001100111000…
…11010011100000
312121201001201020
410303203103200
5131114412231
612000005440
71666165641
oct463432340
9177631636
1080622816
114156712a
1223000880
131391aa11
14a9c96c8
157128396
hex4ce34e0

80622816 has 48 divisors (see below), whose sum is σ = 218469888. Its totient is φ = 26006400.

The previous prime is 80622809. The next prime is 80622821. The reversal of 80622816 is 61822608.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10570 + ... + 16521.

It is an arithmetic number, because the mean of its divisors is an integer number (4551456).

Almost surely, 280622816 is an apocalyptic number.

It is an amenable number.

80622816 is an abundant number, since it is smaller than the sum of its proper divisors (137847072).

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

80622816 is a wasteful number, since it uses less digits than its factorization.

80622816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27135 (or 27127 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 80622816 is about 8979.0208820339. The cubic root of 80622816 is about 432.0022290694.

It can be divided in two parts, 8062 and 2816, that added together give a triangular number (10878 = T147).

The spelling of 80622816 in words is "eighty million, six hundred twenty-two thousand, eight hundred sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 93 96 124 186 248 372 496 744 992 1488 2976 27091 54182 81273 108364 162546 216728 325092 433456 650184 839821 866912 1300368 1679642 2519463 2600736 3359284 5038926 6718568 10077852 13437136 20155704 26874272 40311408 80622816