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74164 = 2218541
BaseRepresentation
bin10010000110110100
310202201211
4102012310
54333124
61331204
7426136
oct220664
9122654
1074164
11507a2
1236b04
13279ac
141d056
1516e94
hex121b4

74164 has 6 divisors (see below), whose sum is σ = 129794. Its totient is φ = 37080.

The previous prime is 74161. The next prime is 74167. The reversal of 74164 is 46147.

It is an interprime number because it is at equal distance from previous prime (74161) and next prime (74167).

It can be written as a sum of positive squares in only one way, i.e., 62500 + 11664 = 250^2 + 108^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9267 + ... + 9274.

274164 is an apocalyptic number.

It is an amenable number.

74164 is a deficient number, since it is larger than the sum of its proper divisors (55630).

74164 is a wasteful number, since it uses less digits than its factorization.

74164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18545 (or 18543 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 74164 is about 272.3306813416. The cubic root of 74164 is about 42.0143563922.

The spelling of 74164 in words is "seventy-four thousand, one hundred sixty-four".

Divisors: 1 2 4 18541 37082 74164