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87959047963 = 19101281163117
BaseRepresentation
bin101000111101011000…
…1001000111100011011
322102001000110121021011
41101322301020330123
52420120004013323
6104224031354351
76232464400033
oct1217261107433
9272030417234
1087959047963
1134337653676
12150693829b7
1383aa039c57
144385c228c3
15244c0ca20d
hex147ac48f1b

87959047963 has 16 divisors (see below), whose sum is σ = 93838523040. Its totient is φ = 82210464000.

The previous prime is 87959047921. The next prime is 87959047991. The reversal of 87959047963 is 36974095978.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87959047963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87959047903) 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 15 ways as a sum of consecutive naturals, for example, 457681 + ... + 620797.

It is an arithmetic number, because the mean of its divisors is an integer number (5864907690).

Almost surely, 287959047963 is an apocalyptic number.

87959047963 is a deficient number, since it is larger than the sum of its proper divisors (5879475077).

87959047963 is a wasteful number, since it uses less digits than its factorization.

87959047963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163518.

The product of its (nonzero) digits is 102876480, while the sum is 67.

The spelling of 87959047963 in words is "eighty-seven billion, nine hundred fifty-nine million, forty-seven thousand, nine hundred sixty-three".

Divisors: 1 19 101 281 1919 5339 28381 163117 539239 3099223 16474817 45835877 313021523 870881663 4629423577 87959047963