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806891332 = 221317912773
BaseRepresentation
bin110000000110000…
…010111101000100
32002020022022211011
4300012002331010
53123031010312
6212022252004
725665314602
oct6006027504
92066268734
10806891332
11384518445
121a6287004
13cb2267c0
1479240872
154ac88da7
hex30182f44

806891332 has 24 divisors (see below), whose sum is σ = 1610133336. Its totient is φ = 350504448.

The previous prime is 806891329. The next prime is 806891339. The reversal of 806891332 is 233198608.

It can be written as a sum of positive squares in 4 ways, for example, as 52070656 + 754820676 = 7216^2 + 27474^2 .

It is not an unprimeable number, because it can be changed into a prime (806891339) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 455503 + ... + 457270.

It is an arithmetic number, because the mean of its divisors is an integer number (67088889).

Almost surely, 2806891332 is an apocalyptic number.

It is an amenable number.

806891332 is a deficient number, since it is larger than the sum of its proper divisors (803242004).

806891332 is a wasteful number, since it uses less digits than its factorization.

806891332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912807 (or 912805 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 806891332 is about 28405.8327109064. The cubic root of 806891332 is about 930.9757100870.

The spelling of 806891332 in words is "eight hundred six million, eight hundred ninety-one thousand, three hundred thirty-two".

Divisors: 1 2 4 13 17 26 34 52 68 221 442 884 912773 1825546 3651092 11866049 15517141 23732098 31034282 47464196 62068564 201722833 403445666 806891332