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8201268 = 2232409557
BaseRepresentation
bin11111010010010000110100
3120102200000200
4133102100310
54044420033
6451440500
7126465255
oct37222064
916380020
108201268
1146a1809
1228b6130
131911c2a
141136b2c
15ac0013
hex7d2434

8201268 has 36 divisors (see below), whose sum is σ = 20818980. Its totient is φ = 2722176.

The previous prime is 8201257. The next prime is 8201299. The reversal of 8201268 is 8621028.

It can be written as a sum of positive squares in 2 ways, for example, as 4112784 + 4088484 = 2028^2 + 2022^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14446 + ... + 15002.

It is an arithmetic number, because the mean of its divisors is an integer number (578305).

Almost surely, 28201268 is an apocalyptic number.

It is an amenable number.

8201268 is an abundant number, since it is smaller than the sum of its proper divisors (12617712).

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

8201268 is a wasteful number, since it uses less digits than its factorization.

8201268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 8201268 is about 2863.7856065006. The cubic root of 8201268 is about 201.6633611309.

The spelling of 8201268 in words is "eight million, two hundred one thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 409 557 818 1114 1227 1636 1671 2228 2454 3342 3681 4908 5013 6684 7362 10026 14724 20052 227813 455626 683439 911252 1366878 2050317 2733756 4100634 8201268