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203112299 = 1319822317
BaseRepresentation
bin11000001101100…
…11111101101011
3112011012011200202
430012303331223
5403444043144
632053222415
75014266065
oct1406637553
9464164622
10203112299
11a4719305
1258031a0b
1333106ac0
141cd92735
1512c7164e
hexc1b3f6b

203112299 has 8 divisors (see below), whose sum is σ = 230249040. Its totient is φ = 177620256.

The previous prime is 203112289. The next prime is 203112307. The reversal of 203112299 is 992211302.

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-203112299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203112229) 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, 410912 + ... + 411405.

It is an arithmetic number, because the mean of its divisors is an integer number (28781130).

Almost surely, 2203112299 is an apocalyptic number.

203112299 is a deficient number, since it is larger than the sum of its proper divisors (27136741).

203112299 is a wasteful number, since it uses less digits than its factorization.

203112299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822349.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 203112299 is about 14251.7472262176. The cubic root of 203112299 is about 587.8214196535.

The spelling of 203112299 in words is "two hundred three million, one hundred twelve thousand, two hundred ninety-nine".

Divisors: 1 13 19 247 822317 10690121 15624023 203112299