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77081468 = 22171133551
BaseRepresentation
bin1001001100000…
…10101101111100
312101001010220012
410212002231330
5124213101333
611352042352
71624116212
oct446025574
9171033805
1077081468
113a5684a2
12219933b8
1312c7ab49
14a346cb2
156b78e48
hex4982b7c

77081468 has 12 divisors (see below), whose sum is σ = 142827552. Its totient is φ = 36273600.

The previous prime is 77081467. The next prime is 77081489. The reversal of 77081468 is 86418077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77081467) 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 3 ways as a sum of consecutive naturals, for example, 566708 + ... + 566843.

It is an arithmetic number, because the mean of its divisors is an integer number (11902296).

Almost surely, 277081468 is an apocalyptic number.

It is an amenable number.

77081468 is a deficient number, since it is larger than the sum of its proper divisors (65746084).

77081468 is a wasteful number, since it uses less digits than its factorization.

77081468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133572 (or 1133570 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 77081468 is about 8779.6052303051. The cubic root of 77081468 is about 425.5820730266.

The spelling of 77081468 in words is "seventy-seven million, eighty-one thousand, four hundred sixty-eight".

Divisors: 1 2 4 17 34 68 1133551 2267102 4534204 19270367 38540734 77081468