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8204080 = 245102551
BaseRepresentation
bin11111010010111100110000
3120102210212211
4133102330300
54100012310
6451501504
7126506413
oct37227460
916383784
108204080
1146a3935
1228b7894
1319132b1
141137b7a
15ac0c8a
hex7d2f30

8204080 has 20 divisors (see below), whose sum is σ = 19074672. Its totient is φ = 3281600.

The previous prime is 8204041. The next prime is 8204087. The reversal of 8204080 is 804028.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (8204087) 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 3 ways as a sum of consecutive naturals, for example, 51196 + ... + 51355.

Almost surely, 28204080 is an apocalyptic number.

8204080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8204080 is an abundant number, since it is smaller than the sum of its proper divisors (10870592).

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

8204080 is a wasteful number, since it uses less digits than its factorization.

8204080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102564 (or 102558 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 8204080 is about 2864.2765229635. The cubic root of 8204080 is about 201.6864068588.

It can be divided in two parts, 820 and 4080, that added together give a square (4900 = 702).

The spelling of 8204080 in words is "eight million, two hundred four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 102551 205102 410204 512755 820408 1025510 1640816 2051020 4102040 8204080