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1085720068 = 223179137809
BaseRepresentation
bin100000010110110…
…1100011000000100
32210122222021221101
41000231230120010
54210421020233
6255422425444
735622316426
oct10055543004
92718867841
101085720068
11507951614
12263732284
13143c21014
14a42a2816
15654b4c7d
hex40b6c604

1085720068 has 48 divisors (see below), whose sum is σ = 2003097600. Its totient is φ = 514275840.

The previous prime is 1085720063. The next prime is 1085720071. The reversal of 1085720068 is 8600275801.

It is not an unprimeable number, because it can be changed into a prime (1085720063) 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 15 ways as a sum of consecutive naturals, for example, 1341648 + ... + 1342456.

It is an arithmetic number, because the mean of its divisors is an integer number (41731200).

Almost surely, 21085720068 is an apocalyptic number.

It is an amenable number.

1085720068 is a deficient number, since it is larger than the sum of its proper divisors (917377532).

1085720068 is a wasteful number, since it uses less digits than its factorization.

1085720068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 1085720068 is about 32950.2665846576. The cubic root of 1085720068 is about 1027.7937089529.

Adding to 1085720068 its reverse (8600275801), we get a palindrome (9685995869).

The spelling of 1085720068 in words is "one billion, eighty-five million, seven hundred twenty thousand, sixty-eight".

Divisors: 1 2 4 31 62 79 124 137 158 274 316 548 809 1618 2449 3236 4247 4898 8494 9796 10823 16988 21646 25079 43292 50158 63911 100316 110833 127822 221666 255644 335513 443332 671026 1342052 1981241 3435823 3962482 6871646 7924964 8755807 13743292 17511614 35023228 271430017 542860034 1085720068