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71674344 = 23327142211
BaseRepresentation
bin1000100010110…
…10100111101000
311222212102201100
410101122213220
5121322034334
611040121400
71530136050
oct421324750
9158772640
1071674344
1137504aa5
1220006260
1311b06971
14973a560
15645bc99
hex445a9e8

71674344 has 48 divisors (see below), whose sum is σ = 221850720. Its totient is φ = 20478240.

The previous prime is 71674333. The next prime is 71674349. The reversal of 71674344 is 44347617.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 71674299 and 71674308.

It is not an unprimeable number, because it can be changed into a prime (71674349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70602 + ... + 71609.

It is an arithmetic number, because the mean of its divisors is an integer number (4621890).

Almost surely, 271674344 is an apocalyptic number.

It is an amenable number.

71674344 is an abundant number, since it is smaller than the sum of its proper divisors (150176376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71674344 is a wasteful number, since it uses less digits than its factorization.

71674344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142230 (or 142223 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 71674344 is about 8466.0701627142. The cubic root of 71674344 is about 415.3886019877.

It can be divided in two parts, 7167 and 4344, that added together give a palindrome (11511).

The spelling of 71674344 in words is "seventy-one million, six hundred seventy-four thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 142211 284422 426633 568844 853266 995477 1137688 1279899 1706532 1990954 2559798 2986431 3413064 3981908 5119596 5972862 7963816 8959293 10239192 11945724 17918586 23891448 35837172 71674344