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74722 = 237361
BaseRepresentation
bin10010001111100010
310210111111
4102033202
54342342
61333534
7430564
oct221742
9123444
1074722
115115a
12372aa
132801b
141d334
1517217
hex123e2

74722 has 4 divisors (see below), whose sum is σ = 112086. Its totient is φ = 37360.

The previous prime is 74719. The next prime is 74729. The reversal of 74722 is 22747.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58081 + 16641 = 241^2 + 129^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a plaindrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 74693 and 74702.

It is not an unprimeable number, because it can be changed into a prime (74729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18679 + ... + 18682.

274722 is an apocalyptic number.

74722 is a deficient number, since it is larger than the sum of its proper divisors (37364).

74722 is a wasteful number, since it uses less digits than its factorization.

74722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37363.

The product of its digits is 784, while the sum is 22.

The square root of 74722 is about 273.3532513068. The cubic root of 74722 is about 42.1194633573.

The spelling of 74722 in words is "seventy-four thousand, seven hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 37361 74722