Search a number
-
+
71306504260 = 22513127216223
BaseRepresentation
bin100001001101000110…
…0101110100001000100
320211001110202201210021
41002122030232201010
52132013431114020
652431401504524
75103020166655
oct1023214564104
9224043681707
1071306504260
1128271732062
12119a04a2144
13695501bcb4
14364634b52c
151cc51881aa
hex109a32e844

71306504260 has 24 divisors (see below), whose sum is σ = 150886745856. Its totient is φ = 28304870880.

The previous prime is 71306504197. The next prime is 71306504263. The reversal of 71306504260 is 6240560317.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71306504263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13605492 + ... + 13610731.

It is an arithmetic number, because the mean of its divisors is an integer number (6286947744).

Almost surely, 271306504260 is an apocalyptic number.

It is an amenable number.

71306504260 is an abundant number, since it is smaller than the sum of its proper divisors (79580241596).

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

71306504260 is a wasteful number, since it uses less digits than its factorization.

71306504260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27216363 (or 27216361 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 71306504260 in words is "seventy-one billion, three hundred six million, five hundred four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 27216223 54432446 108864892 136081115 272162230 544324460 3565325213 7130650426 14261300852 17826626065 35653252130 71306504260