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2002988989 = 4779587919
BaseRepresentation
bin111011101100011…
…0010111110111101
312011120222101100101
41313120302332331
513100231121424
6530431001101
7100431061021
oct16730627675
95146871311
102002988989
119386a9301
1247a969191
1325bc829b1
14150036381
15baca3344
hex77632fbd

2002988989 has 16 divisors (see below), whose sum is σ = 2077286400. Its totient is φ = 1930157424.

The previous prime is 2002988963. The next prime is 2002989047. The reversal of 2002988989 is 9898892002.

It is a cyclic number.

It is not a de Polignac number, because 2002988989 - 211 = 2002986941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002988489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2179072 + ... + 2179990.

It is an arithmetic number, because the mean of its divisors is an integer number (129830400).

Almost surely, 22002988989 is an apocalyptic number.

It is an amenable number.

2002988989 is a deficient number, since it is larger than the sum of its proper divisors (74297411).

2002988989 is an equidigital number, since it uses as much as digits as its factorization.

2002988989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The square root of 2002988989 is about 44754.7649865352. The cubic root of 2002988989 is about 1260.5483858417.

The spelling of 2002988989 in words is "two billion, two million, nine hundred eighty-eight thousand, nine hundred eighty-nine".

Divisors: 1 47 79 587 919 3713 27589 43193 46373 72601 539453 2179531 3412247 25354291 42616787 2002988989