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74768 = 244673
BaseRepresentation
bin10010010000010000
310210120012
4102100100
54343033
61334052
7430661
oct222020
9123505
1074768
11511a1
1237328
1328055
141d368
1517248
hex12410

74768 has 10 divisors (see below), whose sum is σ = 144894. Its totient is φ = 37376.

The previous prime is 74761. The next prime is 74771. The reversal of 74768 is 86747.

It can be written as a sum of positive squares in only one way, i.e., 73984 + 784 = 272^2 + 28^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (74761) by changing a digit.

74768 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321 + ... + 2352.

274768 is an apocalyptic number.

It is an amenable number.

74768 is a deficient number, since it is larger than the sum of its proper divisors (70126).

74768 is a wasteful number, since it uses less digits than its factorization.

74768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4681 (or 4675 counting only the distinct ones).

The product of its digits is 9408, while the sum is 32.

The square root of 74768 is about 273.4373785714. The cubic root of 74768 is about 42.1281047118.

The spelling of 74768 in words is "seventy-four thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 16 4673 9346 18692 37384 74768