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77018 = 297397
BaseRepresentation
bin10010110011011010
310220122112
4102303122
54431033
61352322
7440354
oct226332
9126575
1077018
1152957
12386a2
1329096
14200d4
1517c48
hex12cda

77018 has 8 divisors (see below), whose sum is σ = 117012. Its totient is φ = 38016.

The previous prime is 77017. The next prime is 77023. The reversal of 77018 is 81077.

It can be written as a sum of positive squares in 2 ways, for example, as 76729 + 289 = 277^2 + 17^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 76984 and 77002.

It is not an unprimeable number, because it can be changed into a prime (77017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 392.

277018 is an apocalyptic number.

77018 is a deficient number, since it is larger than the sum of its proper divisors (39994).

77018 is a wasteful number, since it uses less digits than its factorization.

77018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 77018 is about 277.5211703636. The cubic root of 77018 is about 42.5465234481.

The spelling of 77018 in words is "seventy-seven thousand, eighteen".

Divisors: 1 2 97 194 397 794 38509 77018