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77086361 = 118118641
BaseRepresentation
bin1001001100000…
…11111010011001
312101001101121102
410212003322121
5124213230421
611352121145
71624136402
oct446037231
9171041542
1077086361
113a571140
12219961b5
1312c80141
14a3489a9
156b7a60b
hex4983e99

77086361 has 8 divisors (see below), whose sum is σ = 84207648. Its totient is φ = 69984000.

The previous prime is 77086357. The next prime is 77086403. The reversal of 77086361 is 16368077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77086361 - 22 = 77086357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77086301) 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, 4601 + ... + 13241.

It is an arithmetic number, because the mean of its divisors is an integer number (10525956).

Almost surely, 277086361 is an apocalyptic number.

It is an amenable number.

77086361 is a deficient number, since it is larger than the sum of its proper divisors (7121287).

77086361 is a wasteful number, since it uses less digits than its factorization.

77086361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9463.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 77086361 is about 8779.8838830590. The cubic root of 77086361 is about 425.5910779106.

The spelling of 77086361 in words is "seventy-seven million, eighty-six thousand, three hundred sixty-one".

Divisors: 1 11 811 8641 8921 95051 7007851 77086361