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71974 = 275397
BaseRepresentation
bin10001100100100110
310122201201
4101210212
54300344
61313114
7416560
oct214446
9118651
1071974
114a091
123579a
13269b6
141c330
15164d4
hex11926

71974 has 16 divisors (see below), whose sum is σ = 127008. Its totient is φ = 29952.

The previous prime is 71971. The next prime is 71983. The reversal of 71974 is 47917.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71971) 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 in 7 ways as a sum of consecutive naturals, for example, 694 + ... + 790.

It is an arithmetic number, because the mean of its divisors is an integer number (7938).

271974 is an apocalyptic number.

71974 is a deficient number, since it is larger than the sum of its proper divisors (55034).

71974 is a wasteful number, since it uses less digits than its factorization.

71974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159.

The product of its digits is 1764, while the sum is 28.

The square root of 71974 is about 268.2797047859. The cubic root of 71974 is about 41.5966682489.

The spelling of 71974 in words is "seventy-one thousand, nine hundred seventy-four".

Divisors: 1 2 7 14 53 97 106 194 371 679 742 1358 5141 10282 35987 71974