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71864214 = 2311977369
BaseRepresentation
bin1000100100010…
…00111110010110
312000020002011120
410102020332112
5121344123324
611044144410
71531556442
oct422107626
9160202146
1071864214
1137624714
1220098106
1311b72206
149789822
156498179
hex4488f96

71864214 has 8 divisors (see below), whose sum is σ = 143728440. Its totient is φ = 23954736.

The previous prime is 71864201. The next prime is 71864257. The reversal of 71864214 is 41246817.

It is a sphenic number, since it is the product of 3 distinct primes.

71864214 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5988679 + ... + 5988690.

It is an arithmetic number, because the mean of its divisors is an integer number (17966055).

Almost surely, 271864214 is an apocalyptic number.

71864214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

71864214 is a wasteful number, since it uses less digits than its factorization.

71864214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11977374.

The product of its digits is 10752, while the sum is 33.

The square root of 71864214 is about 8477.2763314640. The cubic root of 71864214 is about 415.7550757169.

The spelling of 71864214 in words is "seventy-one million, eight hundred sixty-four thousand, two hundred fourteen".

Divisors: 1 2 3 6 11977369 23954738 35932107 71864214