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988852139 = 1189895649
BaseRepresentation
bin111010111100001…
…010111110101011
32112220200220010022
4322330022332223
54011121232024
6242042311055
733335050562
oct7274127653
92486626108
10988852139
114681aa280
122371b848b
13129b36012
1495488bd9
155bc2d35e
hex3af0afab

988852139 has 4 divisors (see below), whose sum is σ = 1078747800. Its totient is φ = 898956480.

The previous prime is 988852127. The next prime is 988852159. The reversal of 988852139 is 931258889.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 988852139 - 224 = 972074923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988852159) 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 3 ways as a sum of consecutive naturals, for example, 44947814 + ... + 44947835.

It is an arithmetic number, because the mean of its divisors is an integer number (269686950).

Almost surely, 2988852139 is an apocalyptic number.

988852139 is a deficient number, since it is larger than the sum of its proper divisors (89895661).

988852139 is a wasteful number, since it uses less digits than its factorization.

988852139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89895660.

The product of its digits is 1244160, while the sum is 53.

The square root of 988852139 is about 31446.0194460285. The cubic root of 988852139 is about 996.2701518625.

The spelling of 988852139 in words is "nine hundred eighty-eight million, eight hundred fifty-two thousand, one hundred thirty-nine".

Divisors: 1 11 89895649 988852139