Search a number
-
+
71022430869 = 3133019603209
BaseRepresentation
bin100001000100101000…
…1000100101010010101
320210022200020022100120
41002021101010222111
52130423220241434
652343253102153
75063000462445
oct1021121045225
9223280208316
1071022430869
1128136346565
1211921327959
13690b209530
14361a722125
151caa273349
hex1089444a95

71022430869 has 16 divisors (see below), whose sum is σ = 102014875200. Its totient is φ = 43691561856.

The previous prime is 71022430859. The next prime is 71022430907. The reversal of 71022430869 is 96803422017.

It is not a de Polignac number, because 71022430869 - 25 = 71022430837 is a prime.

It is a super-2 number, since 2×710224308692 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71022430869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71022430859) 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, 183864 + ... + 419345.

It is an arithmetic number, because the mean of its divisors is an integer number (6375929700).

Almost surely, 271022430869 is an apocalyptic number.

It is an amenable number.

71022430869 is a deficient number, since it is larger than the sum of its proper divisors (30992444331).

71022430869 is a wasteful number, since it uses less digits than its factorization.

71022430869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606244.

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 71022430869 in words is "seventy-one billion, twenty-two million, four hundred thirty thousand, eight hundred sixty-nine".

Divisors: 1 3 13 39 3019 9057 39247 117741 603209 1809627 7841717 23525151 1821087971 5463263913 23674143623 71022430869