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988676491 = 11711265911
BaseRepresentation
bin111010111011100…
…000000110001011
32112220100222011211
4322323200012023
54011100121431
6242034433551
733333416515
oct7273400613
92486328154
10988676491
1146809a310
122371328b7
13129aa409a
1495440bb5
155bbe62b1
hex3aee018b

988676491 has 8 divisors (see below), whose sum is σ = 1093747968. Its totient is φ = 886137000.

The previous prime is 988676483. The next prime is 988676509. The reversal of 988676491 is 194676889.

988676491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 988676491 - 23 = 988676483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (988676431) 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, 632175 + ... + 633736.

It is an arithmetic number, because the mean of its divisors is an integer number (136718496).

Almost surely, 2988676491 is an apocalyptic number.

988676491 is a deficient number, since it is larger than the sum of its proper divisors (105071477).

988676491 is a wasteful number, since it uses less digits than its factorization.

988676491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265993.

The product of its digits is 5225472, while the sum is 58.

The square root of 988676491 is about 31443.2264724853. The cubic root of 988676491 is about 996.2111598201.

The spelling of 988676491 in words is "nine hundred eighty-eight million, six hundred seventy-six thousand, four hundred ninety-one".

Divisors: 1 11 71 781 1265911 13925021 89879681 988676491