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6487972023 = 313220636203
BaseRepresentation
bin1100000101011011…
…01001100010110111
3121202011021010110010
412002231221202313
5101241410101043
62551443431303
7316530565221
oct60255514267
917664233403
106487972023
11282a322455
121310985533
137c51cc200
14457953411
1527e8c7133
hex182b698b7

6487972023 has 24 divisors (see below), whose sum is σ = 9373300992. Its totient is φ = 3990019488.

The previous prime is 6487972019. The next prime is 6487972033. The reversal of 6487972023 is 3202797846.

It is not a de Polignac number, because 6487972023 - 22 = 6487972019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6487972003) 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 23 ways as a sum of consecutive naturals, for example, 1042840 + ... + 1049042.

It is an arithmetic number, because the mean of its divisors is an integer number (390554208).

Almost surely, 26487972023 is an apocalyptic number.

6487972023 is a deficient number, since it is larger than the sum of its proper divisors (2885328969).

6487972023 is a wasteful number, since it uses less digits than its factorization.

6487972023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8295 (or 8282 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 6487972023 is about 80547.9485958519. The cubic root of 6487972023 is about 1865.1037251091.

The spelling of 6487972023 in words is "six billion, four hundred eighty-seven million, nine hundred seventy-two thousand, twenty-three".

Divisors: 1 3 13 39 169 507 2063 6189 6203 18609 26819 80457 80639 241917 348647 1045941 1048307 3144921 12796789 38390367 166358257 499074771 2162657341 6487972023