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71489803 = 7111078677
BaseRepresentation
bin1000100001011…
…01100100001011
311222112001120111
410100231210023
5121300133203
611032135151
71525440040
oct420554413
9158461514
1071489803
1137399390
121bb374b7
1311a70978
1496cd1c7
15642226d
hex442d90b

71489803 has 16 divisors (see below), whose sum is σ = 89973504. Its totient is φ = 55179360.

The previous prime is 71489801. The next prime is 71489827. The reversal of 71489803 is 30898417.

It is a cyclic number.

It is not a de Polignac number, because 71489803 - 21 = 71489801 is a prime.

It is a super-2 number, since 2×714898032 = 10221583865957618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71489801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3901 + ... + 12577.

It is an arithmetic number, because the mean of its divisors is an integer number (5623344).

Almost surely, 271489803 is an apocalyptic number.

71489803 is a deficient number, since it is larger than the sum of its proper divisors (18483701).

71489803 is a wasteful number, since it uses less digits than its factorization.

71489803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8802.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 71489803 is about 8455.1642798943. The cubic root of 71489803 is about 415.0317931805.

The spelling of 71489803 in words is "seventy-one million, four hundred eighty-nine thousand, eight hundred three".

Divisors: 1 7 11 77 107 749 1177 8239 8677 60739 95447 668129 928439 6499073 10212829 71489803