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76730 = 257673
BaseRepresentation
bin10010101110111010
310220020212
4102232322
54423410
61351122
7436463
oct225672
9126225
1076730
1152715
12384a2
1328c04
141dd6a
1517b05
hex12bba

76730 has 8 divisors (see below), whose sum is σ = 138132. Its totient is φ = 30688.

The previous prime is 76717. The next prime is 76733. The reversal of 76730 is 3767.

It is a Cunningham number, because it is equal to 2772+1.

It can be written as a sum of positive squares in 2 ways, for example, as 76729 + 1 = 277^2 + 1^2 .

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 = 76696 and 76705.

It is not an unprimeable number, because it can be changed into a prime (76733) 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, 3827 + ... + 3846.

276730 is an apocalyptic number.

76730 is a deficient number, since it is larger than the sum of its proper divisors (61402).

76730 is a wasteful number, since it uses less digits than its factorization.

76730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680.

The product of its (nonzero) digits is 882, while the sum is 23.

The square root of 76730 is about 277.0018050483. The cubic root of 76730 is about 42.4934245883.

It can be divided in two parts, 767 and 30, that added together give a palindrome (797).

The spelling of 76730 in words is "seventy-six thousand, seven hundred thirty".

Divisors: 1 2 5 10 7673 15346 38365 76730