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6990254712 = 2332713869553
BaseRepresentation
bin1101000001010011…
…01101001001111000
3200001011101201202200
412200221231021320
5103304001122322
63113345230200
7335140120230
oct64051551170
920034351680
106990254712
112a678a8911
121431032360
138752a32bc
144a4540cc0
152ada418ac
hex1a0a6d278

6990254712 has 48 divisors (see below), whose sum is σ = 21636504240. Its totient is φ = 1997215488.

The previous prime is 6990254651. The next prime is 6990254749. The reversal of 6990254712 is 2174520996.

6990254712 is a `hidden beast` number, since 6 + 9 + 90 + 2 + 547 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6934273 + ... + 6935280.

It is an arithmetic number, because the mean of its divisors is an integer number (450760505).

Almost surely, 26990254712 is an apocalyptic number.

It is an amenable number.

6990254712 is an abundant number, since it is smaller than the sum of its proper divisors (14646249528).

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

6990254712 is a wasteful number, since it uses less digits than its factorization.

6990254712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13869572 (or 13869565 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 6990254712 is about 83607.7431342337. The cubic root of 6990254712 is about 1912.0430531029.

The spelling of 6990254712 in words is "six billion, nine hundred ninety million, two hundred fifty-four thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 13869553 27739106 41608659 55478212 83217318 97086871 110956424 124825977 166434636 194173742 249651954 291260613 332869272 388347484 499303908 582521226 776694968 873781839 998607816 1165042452 1747563678 2330084904 3495127356 6990254712