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71807114 = 235903557
BaseRepresentation
bin1000100011110…
…11000010001010
312000010011211202
410101323002022
5121340311424
611043024202
71531231121
oct421730212
9160104752
1071807114
1137595825
122006b062
1311b52222
149772ab8
1564862ae
hex447b08a

71807114 has 4 divisors (see below), whose sum is σ = 107710674. Its totient is φ = 35903556.

The previous prime is 71807111. The next prime is 71807147. The reversal of 71807114 is 41170817.

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., 48930025 + 22877089 = 6995^2 + 4783^2 .

It is not an unprimeable number, because it can be changed into a prime (71807111) 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 as a sum of consecutive naturals, namely, 17951777 + ... + 17951780.

Almost surely, 271807114 is an apocalyptic number.

71807114 is a deficient number, since it is larger than the sum of its proper divisors (35903560).

71807114 is a wasteful number, since it uses less digits than its factorization.

71807114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35903559.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 71807114 is about 8473.9078352316. The cubic root of 71807114 is about 415.6449332517.

The spelling of 71807114 in words is "seventy-one million, eight hundred seven thousand, one hundred fourteen".

Divisors: 1 2 35903557 71807114