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5497287761 = 71543508961
BaseRepresentation
bin1010001111010100…
…11111010001010001
3112012010010011010102
411013222133101101
542224301202021
62305253542145
7253141114010
oct50752372121
915163104112
105497287761
112371091729
121095044955
13697ba42c4
143a214ca77
1522293600b
hex147a9f451

5497287761 has 8 divisors (see below), whose sum is σ = 6286698624. Its totient is φ = 4708897920.

The previous prime is 5497287737. The next prime is 5497287767. The reversal of 5497287761 is 1677827945.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5497287761 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5497287697 and 5497287706.

It is not an unprimeable number, because it can be changed into a prime (5497287767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243680 + ... + 265281.

It is an arithmetic number, because the mean of its divisors is an integer number (785837328).

Almost surely, 25497287761 is an apocalyptic number.

It is an amenable number.

5497287761 is a deficient number, since it is larger than the sum of its proper divisors (789410863).

5497287761 is a wasteful number, since it uses less digits than its factorization.

5497287761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510511.

The product of its digits is 5927040, while the sum is 56.

The square root of 5497287761 is about 74143.6967044401. The cubic root of 5497287761 is about 1764.8839639414.

The spelling of 5497287761 in words is "five billion, four hundred ninety-seven million, two hundred eighty-seven thousand, seven hundred sixty-one".

Divisors: 1 7 1543 10801 508961 3562727 785326823 5497287761