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981352105 = 51071834303
BaseRepresentation
bin111010011111100…
…011111010101001
32112101120212000021
4322133203322221
54002211231410
6241213440441
733214232566
oct7237437251
92471525007
10981352105
11463a473a8
122347a0121
1312840b326
149449586d
155b24aeda
hex3a7e3ea9

981352105 has 8 divisors (see below), whose sum is σ = 1188628992. Its totient is φ = 777744048.

The previous prime is 981352087. The next prime is 981352117. The reversal of 981352105 is 501253189.

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 981352105 - 215 = 981319337 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 916617 + ... + 917686.

It is an arithmetic number, because the mean of its divisors is an integer number (148578624).

Almost surely, 2981352105 is an apocalyptic number.

It is an amenable number.

981352105 is a deficient number, since it is larger than the sum of its proper divisors (207276887).

981352105 is a wasteful number, since it uses less digits than its factorization.

981352105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834415.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 981352105 is about 31326.5399461862. The cubic root of 981352105 is about 993.7449914440.

The spelling of 981352105 in words is "nine hundred eighty-one million, three hundred fifty-two thousand, one hundred five".

Divisors: 1 5 107 535 1834303 9171515 196270421 981352105