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1123300987 = 47191125131
BaseRepresentation
bin100001011110100…
…0011011001111011
32220021200121021021
41002331003121323
54300031112422
6303244123311
736556620664
oct10275033173
92807617237
101123300987
1152708a726
12274236537
1314b94b753
14a928636b
1568939dc7
hex42f4367b

1123300987 has 8 divisors (see below), whose sum is σ = 1153216512. Its totient is φ = 1093636200.

The previous prime is 1123300963. The next prime is 1123300991. The reversal of 1123300987 is 7890033211.

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-1123300987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123300187) 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, 53589 + ... + 71542.

It is an arithmetic number, because the mean of its divisors is an integer number (144152064).

Almost surely, 21123300987 is an apocalyptic number.

1123300987 is a deficient number, since it is larger than the sum of its proper divisors (29915525).

1123300987 is a wasteful number, since it uses less digits than its factorization.

1123300987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125369.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1123300987 is about 33515.6827022813. The cubic root of 1123300987 is about 1039.5180789258.

The spelling of 1123300987 in words is "one billion, one hundred twenty-three million, three hundred thousand, nine hundred eighty-seven".

Divisors: 1 47 191 8977 125131 5881157 23900021 1123300987