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981242203 = 9712298231
BaseRepresentation
bin111010011111001…
…001000101011011
32112101101021020211
4322133021011123
54002144222303
6241211231551
733213264304
oct7237110533
92471337224
10981242203
11463981877
122347485b7
131283a02b6
14944677ab
155b22866d
hex3a7c915b

981242203 has 8 divisors (see below), whose sum is σ = 992285280. Its totient is φ = 970218240.

The previous prime is 981242189. The next prime is 981242237. The reversal of 981242203 is 302242189.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-981242203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (981242263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115098 + ... + 123328.

It is an arithmetic number, because the mean of its divisors is an integer number (124035660).

Almost surely, 2981242203 is an apocalyptic number.

981242203 is a deficient number, since it is larger than the sum of its proper divisors (11043077).

981242203 is a wasteful number, since it uses less digits than its factorization.

981242203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9557.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 981242203 is about 31324.7857614382. The cubic root of 981242203 is about 993.7078934310.

The spelling of 981242203 in words is "nine hundred eighty-one million, two hundred forty-two thousand, two hundred three".

Divisors: 1 97 1229 8231 119213 798407 10115899 981242203