Search a number
-
+
71044505 = 572029843
BaseRepresentation
bin1000011110000…
…00110110011001
311221200102201222
410033000312121
5121141411010
611014421425
71521603560
oct417006631
9157612658
1071044505
1137114874
121b961875
131194608c
149614bd7
156385355
hex43c0d99

71044505 has 8 divisors (see below), whose sum is σ = 97432512. Its totient is φ = 48716208.

The previous prime is 71044499. The next prime is 71044531. The reversal of 71044505 is 50544017.

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

It is a cyclic number.

It is not a de Polignac number, because 71044505 - 24 = 71044489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014887 + ... + 1014956.

It is an arithmetic number, because the mean of its divisors is an integer number (12179064).

Almost surely, 271044505 is an apocalyptic number.

It is an amenable number.

71044505 is a deficient number, since it is larger than the sum of its proper divisors (26388007).

71044505 is a wasteful number, since it uses less digits than its factorization.

71044505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029855.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 71044505 is about 8428.7902453436. The cubic root of 71044505 is about 414.1682766332.

The spelling of 71044505 in words is "seventy-one million, forty-four thousand, five hundred five".

Divisors: 1 5 7 35 2029843 10149215 14208901 71044505