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1200220993 = 10312791753
BaseRepresentation
bin100011110001001…
…1110101101000001
310002122102112200101
41013202132231001
54424224032433
6315032522401
741512465366
oct10742365501
93078375611
101200220993
11566547884
12295b50401
13161870c4a
14b558a46d
157058107d
hex4789eb41

1200220993 has 8 divisors (see below), whose sum is σ = 1221429248. Its totient is φ = 1179196704.

The previous prime is 1200220951. The next prime is 1200221023. The reversal of 1200220993 is 3990220021.

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 1200220993 - 225 = 1166666561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230220993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32796 + ... + 58957.

It is an arithmetic number, because the mean of its divisors is an integer number (152678656).

Almost surely, 21200220993 is an apocalyptic number.

It is an amenable number.

1200220993 is a deficient number, since it is larger than the sum of its proper divisors (21208255).

1200220993 is a wasteful number, since it uses less digits than its factorization.

1200220993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91983.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1200220993 is about 34644.2057637349. The cubic root of 1200220993 is about 1062.7237985411.

The spelling of 1200220993 in words is "one billion, two hundred million, two hundred twenty thousand, nine hundred ninety-three".

Divisors: 1 103 127 13081 91753 9450559 11652631 1200220993