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8211396 = 2235312911
BaseRepresentation
bin11111010100101111000100
3120110011220210
4133110233010
54100231041
6451555420
7126536634
oct37245704
916404823
108211396
1146a9386
1228bbb70
13191671b
14113a6c4
15ac3016
hex7d4bc4

8211396 has 24 divisors (see below), whose sum is σ = 19522944. Its totient is φ = 2685280.

The previous prime is 8211389. The next prime is 8211397. The reversal of 8211396 is 6931128.

It is not an unprimeable number, because it can be changed into a prime (8211397) 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, 5820 + ... + 7091.

It is an arithmetic number, because the mean of its divisors is an integer number (813456).

Almost surely, 28211396 is an apocalyptic number.

It is an amenable number.

8211396 is an abundant number, since it is smaller than the sum of its proper divisors (11311548).

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

8211396 is a wasteful number, since it uses less digits than its factorization.

8211396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12971 (or 12969 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 8211396 is about 2865.5533497040. The cubic root of 8211396 is about 201.7463404270.

The spelling of 8211396 in words is "eight million, two hundred eleven thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 53 106 159 212 318 636 12911 25822 38733 51644 77466 154932 684283 1368566 2052849 2737132 4105698 8211396