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89885031986 = 271632993183
BaseRepresentation
bin101001110110110010…
…0001011111000110010
322121000020112201122202
41103231210023320302
52433041032010421
6105143112103202
76331302110561
oct1235544137062
9277006481582
1089885031986
1135135836a02
1215506394b02
13862606a879
1444c9931bd8
15251121c10b
hex14ed90be32

89885031986 has 8 divisors (see below), whose sum is σ = 136726527744. Its totient is φ = 44309522740.

The previous prime is 89885031979. The next prime is 89885031997. The reversal of 89885031986 is 68913058898.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 316496450 + ... + 316496733.

It is an arithmetic number, because the mean of its divisors is an integer number (17090815968).

Almost surely, 289885031986 is an apocalyptic number.

89885031986 is a deficient number, since it is larger than the sum of its proper divisors (46841495758).

89885031986 is a wasteful number, since it uses less digits than its factorization.

89885031986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632993256.

The product of its (nonzero) digits is 29859840, while the sum is 65.

The spelling of 89885031986 in words is "eighty-nine billion, eight hundred eighty-five million, thirty-one thousand, nine hundred eighty-six".

Divisors: 1 2 71 142 632993183 1265986366 44942515993 89885031986