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72789003908 = 2229627491413
BaseRepresentation
bin100001111001010010…
…0000000111010000100
320221212210100111222122
41003302210000322010
52143032441111113
653234440545112
75154531216245
oct1036244007204
9227783314878
1072789003908
1128962549a85
1212134a82198
136b301c481a
1437471b6ccc
151d603c7408
hex10f2900e84

72789003908 has 12 divisors (see below), whose sum is σ = 131773196940. Its totient is φ = 35139519072.

The previous prime is 72789003871. The next prime is 72789003941. The reversal of 72789003908 is 80930098727.

It can be written as a sum of positive squares in 2 ways, for example, as 33095614084 + 39693389824 = 181922^2 + 199232^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72789003908.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 313745591 + ... + 313745822.

It is an arithmetic number, because the mean of its divisors is an integer number (10981099745).

Almost surely, 272789003908 is an apocalyptic number.

It is an amenable number.

72789003908 is a deficient number, since it is larger than the sum of its proper divisors (58984193032).

72789003908 is a wasteful number, since it uses less digits than its factorization.

72789003908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627491446 (or 627491444 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 72789003908 in words is "seventy-two billion, seven hundred eighty-nine million, three thousand, nine hundred eight".

Divisors: 1 2 4 29 58 116 627491413 1254982826 2509965652 18197250977 36394501954 72789003908