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8072148642 = 236229215983
BaseRepresentation
bin1111000010010001…
…10011011010100010
3202211120011122020020
413201020303122202
5113012432224032
63412554054310
7404015063025
oct74110633242
922746148206
108072148642
113472576828
12169341a396
139b848491c
145680c91bc
153239ecb2c
hex1e12336a2

8072148642 has 16 divisors (see below), whose sum is σ = 16146963840. Its totient is φ = 2690271792.

The previous prime is 8072148589. The next prime is 8072148659. The reversal of 8072148642 is 2468412708.

It is a junction number, because it is equal to n+sod(n) for n = 8072148594 and 8072148603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70618 + ... + 145365.

It is an arithmetic number, because the mean of its divisors is an integer number (1009185240).

Almost surely, 28072148642 is an apocalyptic number.

8072148642 is an abundant number, since it is smaller than the sum of its proper divisors (8074815198).

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

8072148642 is a wasteful number, since it uses less digits than its factorization.

8072148642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222217.

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 8072148642 is about 89845.1369969460. The cubic root of 8072148642 is about 2005.9944024533.

The spelling of 8072148642 in words is "eight billion, seventy-two million, one hundred forty-eight thousand, six hundred forty-two".

Divisors: 1 2 3 6 6229 12458 18687 37374 215983 431966 647949 1295898 1345358107 2690716214 4036074321 8072148642