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80215036 = 221119229419
BaseRepresentation
bin1001100011111…
…11101111111100
312120221100100021
410301333233330
5131013340121
611543141524
71662550036
oct461775774
9176840307
1080215036
1141308820
1222a448a4
1313807225
14a920c56
157097641
hex4c7fbfc

80215036 has 48 divisors (see below), whose sum is σ = 162288000. Its totient is φ = 34309440.

The previous prime is 80214997. The next prime is 80215049. The reversal of 80215036 is 63051208.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80215036.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191235 + ... + 191653.

It is an arithmetic number, because the mean of its divisors is an integer number (3381000).

Almost surely, 280215036 is an apocalyptic number.

It is an amenable number.

80215036 is an abundant number, since it is smaller than the sum of its proper divisors (82072964).

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

80215036 is a wasteful number, since it uses less digits than its factorization.

80215036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 80215036 is about 8956.2847207980. The cubic root of 80215036 is about 431.2726601269.

The spelling of 80215036 in words is "eighty million, two hundred fifteen thousand, thirty-six".

Divisors: 1 2 4 11 19 22 38 44 76 209 229 418 419 458 836 838 916 1676 2519 4351 4609 5038 7961 8702 9218 10076 15922 17404 18436 31844 47861 87571 95722 95951 175142 191444 191902 350284 383804 1055461 1823069 2110922 3646138 4221844 7292276 20053759 40107518 80215036