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5178072671 = 71163447427
BaseRepresentation
bin1001101001010001…
…10001111001011111
3111100212110100100022
410310220301321133
541101041311141
62213452022355
7242213614532
oct46450617137
914325410308
105178072671
112217983702
1210061619bb
13646a09435
143719b6a19
152048cdb4b
hex134a31e5f

5178072671 has 8 divisors (see below), whose sum is σ = 5283229824. Its totient is φ = 5073810840.

The previous prime is 5178072661. The next prime is 5178072709. The reversal of 5178072671 is 1762708715.

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 5178072671 - 214 = 5178056287 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 (5178072661) 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, 212141 + ... + 235286.

It is an arithmetic number, because the mean of its divisors is an integer number (660403728).

Almost surely, 25178072671 is an apocalyptic number.

5178072671 is a deficient number, since it is larger than the sum of its proper divisors (105157153).

5178072671 is a wasteful number, since it uses less digits than its factorization.

5178072671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447661.

The product of its (nonzero) digits is 164640, while the sum is 44.

The square root of 5178072671 is about 71958.8262202768. The cubic root of 5178072671 is about 1730.0396118432.

The spelling of 5178072671 in words is "five billion, one hundred seventy-eight million, seventy-two thousand, six hundred seventy-one".

Divisors: 1 71 163 11573 447427 31767317 72930601 5178072671