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88491121 = 671996637
BaseRepresentation
bin1010100011001…
…00010001110001
320011111210222221
411101210101301
5140123203441
612440401041
72123106415
oct521442161
9204453887
1088491121
1145a50764
1225776181
1315444214
14ba76d45
157b7e8d1
hex5464471

88491121 has 8 divisors (see below), whose sum is σ = 90276800. Its totient is φ = 86719248.

The previous prime is 88491107. The next prime is 88491131. The reversal of 88491121 is 12119488.

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 88491121 - 25 = 88491089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88491131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10015 + ... + 16651.

It is an arithmetic number, because the mean of its divisors is an integer number (11284600).

Almost surely, 288491121 is an apocalyptic number.

It is an amenable number.

88491121 is a deficient number, since it is larger than the sum of its proper divisors (1785679).

88491121 is a wasteful number, since it uses less digits than its factorization.

88491121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6903.

The product of its digits is 4608, while the sum is 34.

The square root of 88491121 is about 9406.9719357506. The cubic root of 88491121 is about 445.6219406100.

The spelling of 88491121 in words is "eighty-eight million, four hundred ninety-one thousand, one hundred twenty-one".

Divisors: 1 67 199 6637 13333 444679 1320763 88491121