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8190216 = 2332195987
BaseRepresentation
bin11111001111100100001000
3120102002212100
4133033210020
54044041331
6451313400
7126421116
oct37174410
916362770
108190216
114694481
1228ab860
131909ba8
141132ab6
15abbae6
hex7cf908

8190216 has 48 divisors (see below), whose sum is σ = 23353200. Its totient is φ = 2585952.

The previous prime is 8190211. The next prime is 8190223. The reversal of 8190216 is 6120918.

It is a self number, because there is not a number n which added to its sum of digits gives 8190216.

It is not an unprimeable number, because it can be changed into a prime (8190211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1626 + ... + 4361.

It is an arithmetic number, because the mean of its divisors is an integer number (486525).

Almost surely, 28190216 is an apocalyptic number.

It is an amenable number.

8190216 is an abundant number, since it is smaller than the sum of its proper divisors (15162984).

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

8190216 is a wasteful number, since it uses less digits than its factorization.

8190216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6018 (or 6011 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 8190216 is about 2861.8553422561. The cubic root of 8190216 is about 201.5727334628.

It can be divided in two parts, 81902 and 16, that added together give a palindrome (81918).

The spelling of 8190216 in words is "eight million, one hundred ninety thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 18 19 24 36 38 57 72 76 114 152 171 228 342 456 684 1368 5987 11974 17961 23948 35922 47896 53883 71844 107766 113753 143688 215532 227506 341259 431064 455012 682518 910024 1023777 1365036 2047554 2730072 4095108 8190216