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7216718082 = 237171826621
BaseRepresentation
bin1101011100010011…
…00110000100000010
3200121221112021002220
412232021212010002
5104234434434312
63152035151510
7343560043260
oct65611460402
920557467086
107216718082
113073716122
121494a45596
138b01948b2
144c6651430
152c3876c8c
hex1ae266102

7216718082 has 16 divisors (see below), whose sum is σ = 16495355712. Its totient is φ = 2061919440.

The previous prime is 7216717999. The next prime is 7216718083. The reversal of 7216718082 is 2808176127.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 171826621 = 7216718082 / (7 + 2 + 1 + 6 + 7 + 1 + 8 + 0 + 8 + 2).

It is not an unprimeable number, because it can be changed into a prime (7216718083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85913269 + ... + 85913352.

It is an arithmetic number, because the mean of its divisors is an integer number (1030959732).

Almost surely, 27216718082 is an apocalyptic number.

7216718082 is an abundant number, since it is smaller than the sum of its proper divisors (9278637630).

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

7216718082 is a wasteful number, since it uses less digits than its factorization.

7216718082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171826633.

The product of its (nonzero) digits is 75264, while the sum is 42.

The square root of 7216718082 is about 84951.2688663330. The cubic root of 7216718082 is about 1932.4721630812.

The spelling of 7216718082 in words is "seven billion, two hundred sixteen million, seven hundred eighteen thousand, eighty-two".

Divisors: 1 2 3 6 7 14 21 42 171826621 343653242 515479863 1030959726 1202786347 2405572694 3608359041 7216718082