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2029240989 = 321771367509
BaseRepresentation
bin111100011110011…
…1100001010011101
312020102101010022200
41320330330022131
513123441202424
6533205402113
7101200156326
oct17074741235
95212333280
102029240989
119514a9876
12487709339
13264544a19
1415370b44d
15bd23b8c9
hex78f3c29d

2029240989 has 48 divisors (see below), whose sum is σ = 3162032640. Its totient is φ = 1249436160.

The previous prime is 2029240981. The next prime is 2029240991. The reversal of 2029240989 is 9890429202.

It is not a de Polignac number, because 2029240989 - 23 = 2029240981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2029240981) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3986467 + ... + 3986975.

It is an arithmetic number, because the mean of its divisors is an integer number (65875680).

Almost surely, 22029240989 is an apocalyptic number.

It is an amenable number.

2029240989 is a deficient number, since it is larger than the sum of its proper divisors (1132791651).

2029240989 is a wasteful number, since it uses less digits than its factorization.

2029240989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 2029240989 is about 45047.0974536651. The cubic root of 2029240989 is about 1266.0315891731.

The spelling of 2029240989 in words is "two billion, twenty-nine million, two hundred forty thousand, nine hundred eighty-nine".

Divisors: 1 3 9 17 51 71 153 213 367 509 639 1101 1207 1527 3303 3621 4581 6239 8653 10863 18717 25959 26057 36139 56151 77877 78171 108417 186803 234513 325251 442969 560409 614363 1328907 1681227 1843089 3175651 3986721 5529267 9526953 13263013 28580859 39789039 119367117 225471221 676413663 2029240989