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71915214 = 2371712267
BaseRepresentation
bin1000100100101…
…01011011001110
312000022200010110
410102111123032
5121402241324
611045220450
71532161230
oct422253316
9160280113
1071915214
1137659a68
1220101726
1311b8c4a7
1497a0250
1564a8329
hex44956ce

71915214 has 16 divisors (see below), whose sum is σ = 164377728. Its totient is φ = 20547192.

The previous prime is 71915213. The next prime is 71915231. The reversal of 71915214 is 41251917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71915213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856092 + ... + 856175.

It is an arithmetic number, because the mean of its divisors is an integer number (10273608).

Almost surely, 271915214 is an apocalyptic number.

71915214 is an abundant number, since it is smaller than the sum of its proper divisors (92462514).

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

71915214 is a wasteful number, since it uses less digits than its factorization.

71915214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712279.

The product of its digits is 2520, while the sum is 30.

The square root of 71915214 is about 8480.2838395893. The cubic root of 71915214 is about 415.8534023332.

The spelling of 71915214 in words is "seventy-one million, nine hundred fifteen thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 1712267 3424534 5136801 10273602 11985869 23971738 35957607 71915214