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6493706947 = 713570112517
BaseRepresentation
bin1100000110000111…
…00001101011000011
3121202120001111021201
412003003201223003
5101244342110242
62552210402031
7316630412140
oct60303415303
917676044251
106493706947
11283258a162
121312890317
137c6459660
144586073c7
1528015b4b7
hex1830e1ac3

6493706947 has 16 divisors (see below), whose sum is σ = 7994295232. Its totient is φ = 5136566400.

The previous prime is 6493706917. The next prime is 6493706953. The reversal of 6493706947 is 7496073946.

It is not a de Polignac number, because 6493706947 - 27 = 6493706819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6493706917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512533 + ... + 525049.

It is an arithmetic number, because the mean of its divisors is an integer number (499643452).

Almost surely, 26493706947 is an apocalyptic number.

6493706947 is a deficient number, since it is larger than the sum of its proper divisors (1500588285).

6493706947 is a wasteful number, since it uses less digits than its factorization.

6493706947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238.

The product of its (nonzero) digits is 6858432, while the sum is 55.

The square root of 6493706947 is about 80583.5401741572. The cubic root of 6493706947 is about 1865.6531046916.

The spelling of 6493706947 in words is "six billion, four hundred ninety-three million, seven hundred six thousand, nine hundred forty-seven".

Divisors: 1 7 13 91 5701 12517 39907 74113 87619 162721 518791 1139047 71359417 499515919 927672421 6493706947