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5257760686 = 28171321733
BaseRepresentation
bin1001110010110001…
…10000111110101110
3111120102101220202021
410321120300332232
541231441320221
62225420020354
7244202141233
oct47130607656
914512356667
105257760686
112258961472
1210289916ba
1365a38a7c9
1437c3db78a
1520b8c0041
hex139630fae

5257760686 has 8 divisors (see below), whose sum is σ = 7887630744. Its totient is φ = 2628550440.

The previous prime is 5257760681. The next prime is 5257760689. The reversal of 5257760686 is 6860677525.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257760681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144525 + ... + 177208.

It is an arithmetic number, because the mean of its divisors is an integer number (985953843).

Almost surely, 25257760686 is an apocalyptic number.

5257760686 is a deficient number, since it is larger than the sum of its proper divisors (2629870058).

5257760686 is a wasteful number, since it uses less digits than its factorization.

5257760686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329906.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The square root of 5257760686 is about 72510.4177756548. The cubic root of 5257760686 is about 1738.8692929145.

The spelling of 5257760686 in words is "five billion, two hundred fifty-seven million, seven hundred sixty thousand, six hundred eighty-six".

Divisors: 1 2 8171 16342 321733 643466 2628880343 5257760686