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87944838808321 = 1154711461338941
BaseRepresentation
bin10011111111110001000000…
…111000001000001100000001
3102112101110000000201112220001
4103333301000320020030001
543011342012213331241
6511013145020520001
724344543042545015
oct2377610070101401
9375343000645801
1087944838808321
1126027218876660
129a443706b0001
133a0c21663aa91
1417a07a5282545
15a279a8d62431
hex4ffc40e08301

87944838808321 has 8 divisors (see below), whose sum is σ = 95957360287488. Its totient is φ = 79935240018000.

The previous prime is 87944838808303. The next prime is 87944838808331. The reversal of 87944838808321 is 12380883844978.

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 87944838808321 - 215 = 87944838775553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87944838808331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730609290 + ... + 730729651.

It is an arithmetic number, because the mean of its divisors is an integer number (11994670035936).

Almost surely, 287944838808321 is an apocalyptic number.

It is an amenable number.

87944838808321 is a deficient number, since it is larger than the sum of its proper divisors (8012521479167).

87944838808321 is a wasteful number, since it uses less digits than its factorization.

87944838808321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461344423.

The product of its (nonzero) digits is 594542592, while the sum is 73.

The spelling of 87944838808321 in words is "eighty-seven trillion, nine hundred forty-four billion, eight hundred thirty-eight million, eight hundred eight thousand, three hundred twenty-one".

Divisors: 1 11 5471 60181 1461338941 16074728351 7994985346211 87944838808321