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71450386 = 2715732507
BaseRepresentation
bin1000100001000…
…11111100010010
311222110001111121
410100203330102
5121242403021
611031232454
71525214110
oct420437422
9158401447
1071450386
1137371807
121bb1872a
1311a58a47
1496bcab0
156415741
hex4423f12

71450386 has 16 divisors (see below), whose sum is σ = 123270336. Its totient is φ = 30425616.

The previous prime is 71450383. The next prime is 71450389. The reversal of 71450386 is 68305417.

It is an interprime number because it is at equal distance from previous prime (71450383) and next prime (71450389).

It is not an unprimeable number, because it can be changed into a prime (71450383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14056 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (7704396).

Almost surely, 271450386 is an apocalyptic number.

71450386 is a deficient number, since it is larger than the sum of its proper divisors (51819950).

71450386 is a wasteful number, since it uses less digits than its factorization.

71450386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32673.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 71450386 is about 8452.8330162141. The cubic root of 71450386 is about 414.9555011077.

The spelling of 71450386 in words is "seventy-one million, four hundred fifty thousand, three hundred eighty-six".

Divisors: 1 2 7 14 157 314 1099 2198 32507 65014 227549 455098 5103599 10207198 35725193 71450386