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71444194 = 235722097
BaseRepresentation
bin1000100001000…
…10011011100010
311222102202000021
410100202123202
5121242203234
611031144054
71525160053
oct420423342
9158382007
1071444194
1137368098
121bb1502a
1311a55c93
1496ba72a
1564139b4
hex44226e2

71444194 has 4 divisors (see below), whose sum is σ = 107166294. Its totient is φ = 35722096.

The previous prime is 71444189. The next prime is 71444227. The reversal of 71444194 is 49144417.

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., 50623225 + 20820969 = 7115^2 + 4563^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17861047 + ... + 17861050.

Almost surely, 271444194 is an apocalyptic number.

71444194 is a deficient number, since it is larger than the sum of its proper divisors (35722100).

71444194 is a wasteful number, since it uses less digits than its factorization.

71444194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35722099.

The product of its digits is 16128, while the sum is 34.

The square root of 71444194 is about 8452.4667405439. The cubic root of 71444194 is about 414.9435138681.

The spelling of 71444194 in words is "seventy-one million, four hundred forty-four thousand, one hundred ninety-four".

Divisors: 1 2 35722097 71444194