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80630484 = 22311610837
BaseRepresentation
bin1001100111001…
…01001011010100
312121201110020020
410303211023110
5131120133414
612000105140
71666230204
oct463451324
9177643206
1080630484
1141571970
12230051b0
131392135c
14a9cc404
15712a7a9
hex4ce52d4

80630484 has 24 divisors (see below), whose sum is σ = 205241568. Its totient is φ = 24433440.

The previous prime is 80630483. The next prime is 80630489. The reversal of 80630484 is 48403608.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80630483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305287 + ... + 305550.

It is an arithmetic number, because the mean of its divisors is an integer number (8551732).

Almost surely, 280630484 is an apocalyptic number.

It is an amenable number.

80630484 is an abundant number, since it is smaller than the sum of its proper divisors (124611084).

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

80630484 is a wasteful number, since it uses less digits than its factorization.

80630484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610855 (or 610853 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 80630484 is about 8979.4478672132. The cubic root of 80630484 is about 432.0159244816.

The spelling of 80630484 in words is "eighty million, six hundred thirty thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 610837 1221674 1832511 2443348 3665022 6719207 7330044 13438414 20157621 26876828 40315242 80630484