Search a number
-
+
71214233 = 2337671249
BaseRepresentation
bin1000011111010…
…10010010011001
311222000001120012
410033222102121
5121212323413
611022211305
71523211446
oct417522231
9158001505
1071214233
1137220342
121ba23b35
13119a53cc
14965a9cd
1563ba7a8
hex43ea499

71214233 has 16 divisors (see below), whose sum is σ = 77520000. Its totient is φ = 65235456.

The previous prime is 71214203. The next prime is 71214271. The reversal of 71214233 is 33241217.

It is a cyclic number.

It is not a de Polignac number, because 71214233 - 220 = 70165657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71214199 and 71214208.

It is not an unprimeable number, because it can be changed into a prime (71214203) 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 15 ways as a sum of consecutive naturals, for example, 56393 + ... + 57641.

It is an arithmetic number, because the mean of its divisors is an integer number (4845000).

Almost surely, 271214233 is an apocalyptic number.

It is an amenable number.

71214233 is a deficient number, since it is larger than the sum of its proper divisors (6305767).

71214233 is a wasteful number, since it uses less digits than its factorization.

71214233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its digits is 1008, while the sum is 23.

The square root of 71214233 is about 8438.8525878818. The cubic root of 71214233 is about 414.4978355369.

The spelling of 71214233 in words is "seventy-one million, two hundred fourteen thousand, two hundred thirty-three".

Divisors: 1 23 37 67 851 1249 1541 2479 28727 46213 57017 83683 1062899 1924709 3096271 71214233