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3218137075 = 52152384521
BaseRepresentation
bin1011111111010000…
…1101111111110011
322022021111022011001
42333310031333303
523042320341300
61251155502431
7142514466556
oct27764157763
98267438131
103218137075
11140161101a
127598b7a17
133c394c02a
1422758a69d
1513c7d216a
hexbfd0dff3

3218137075 has 12 divisors (see below), whose sum is σ = 3993157368. Its totient is φ = 2572788800.

The previous prime is 3218137067. The next prime is 3218137081. The reversal of 3218137075 is 5707318123.

It is not a de Polignac number, because 3218137075 - 23 = 3218137067 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4186 + ... + 80335.

It is an arithmetic number, because the mean of its divisors is an integer number (332763114).

Almost surely, 23218137075 is an apocalyptic number.

3218137075 is a deficient number, since it is larger than the sum of its proper divisors (775020293).

3218137075 is a wasteful number, since it uses less digits than its factorization.

3218137075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86054 (or 86049 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 3218137075 is about 56728.6265918716. The cubic root of 3218137075 is about 1476.3914208983.

The spelling of 3218137075 in words is "three billion, two hundred eighteen million, one hundred thirty-seven thousand, seventy-five".

Divisors: 1 5 25 1523 7615 38075 84521 422605 2113025 128725483 643627415 3218137075