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6490070671 = 71754538409
BaseRepresentation
bin1100000101101011…
…01001111010001111
3121202022012202020211
412002311221322033
5101242424230141
62552000423251
7316554455560
oct60265517217
917668182224
106490070671
112830526177
121311617b27
137c5785506
14457d3c167
1527eb8dd81
hex182d69e8f

6490070671 has 8 divisors (see below), whose sum is σ = 7853531040. Its totient is φ = 5235687168.

The previous prime is 6490070669. The next prime is 6490070677. The reversal of 6490070671 is 1760700946.

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

It is a cyclic number.

It is not a de Polignac number, because 6490070671 - 21 = 6490070669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490070677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27269086 + ... + 27269323.

It is an arithmetic number, because the mean of its divisors is an integer number (981691380).

Almost surely, 26490070671 is an apocalyptic number.

6490070671 is a deficient number, since it is larger than the sum of its proper divisors (1363460369).

6490070671 is a wasteful number, since it uses less digits than its factorization.

6490070671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54538433.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 6490070671 is about 80560.9748637639. The cubic root of 6490070671 is about 1865.3048035676.

The spelling of 6490070671 in words is "six billion, four hundred ninety million, seventy thousand, six hundred seventy-one".

Divisors: 1 7 17 119 54538409 381768863 927152953 6490070671