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6990241530 = 235597949991
BaseRepresentation
bin1101000001010011…
…01001111011111010
3200001011101001200110
412200221221323322
5103304000212110
63113345045150
7335140033626
oct64051517372
920034331613
106990241530
112a67899a18
1214310267b6
1387529a2bc
144a453a186
152ada3ca20
hex1a0a69efa

6990241530 has 64 divisors (see below), whose sum is σ = 17277235200. Its totient is φ = 1809238080.

The previous prime is 6990241523. The next prime is 6990241541. The reversal of 6990241530 is 351420996.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114835 + ... + 164825.

It is an arithmetic number, because the mean of its divisors is an integer number (269956800).

Almost surely, 26990241530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6990241530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8638617600).

6990241530 is an abundant number, since it is smaller than the sum of its proper divisors (10286993670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6990241530 is a wasteful number, since it uses less digits than its factorization.

6990241530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50139.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 6990241530 is about 83607.6643017852. The cubic root of 6990241530 is about 1912.0418512122.

The spelling of 6990241530 in words is "six billion, nine hundred ninety million, two hundred forty-one thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 59 79 118 158 177 237 295 354 395 474 590 790 885 1185 1770 2370 4661 9322 13983 23305 27966 46610 49991 69915 99982 139830 149973 249955 299946 499910 749865 1499730 2949469 3949289 5898938 7898578 8848407 11847867 14747345 17696814 19746445 23695734 29494690 39492890 44242035 59239335 88484070 118478670 233008051 466016102 699024153 1165040255 1398048306 2330080510 3495120765 6990241530