Search a number
-
+
71949714 = 2311991619
BaseRepresentation
bin1000100100111…
…01110110010010
312000101102110020
410102131312102
5121404342324
611050044310
71532363634
oct422356622
9160342406
1071949714
1137682981
1220119696
1311ba20c5
1497aca54
1564b3679
hex449dd92

71949714 has 8 divisors (see below), whose sum is σ = 143899440. Its totient is φ = 23983236.

The previous prime is 71949679. The next prime is 71949743. The reversal of 71949714 is 41794917.

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

71949714 is an admirable number.

It is a super-2 number, since 2×719497142 = 10353522689363592, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5995804 + ... + 5995815.

It is an arithmetic number, because the mean of its divisors is an integer number (17987430).

Almost surely, 271949714 is an apocalyptic number.

71949714 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.

71949714 is a wasteful number, since it uses less digits than its factorization.

71949714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11991624.

The product of its digits is 63504, while the sum is 42.

The square root of 71949714 is about 8482.3177257162. The cubic root of 71949714 is about 415.9198910402.

The spelling of 71949714 in words is "seventy-one million, nine hundred forty-nine thousand, seven hundred fourteen".

Divisors: 1 2 3 6 11991619 23983238 35974857 71949714