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12990548736 = 283211512569
BaseRepresentation
bin11000001100100110…
…00000101100000000
31020112100000020202200
430012103000230000
5203101040024421
65545012313200
7636626561634
oct140623005400
936470006680
1012990548736
11556690a5a0
122626612800
1312c0442b39
148b33c8dc4
155106d6726
hex3064c0b00

12990548736 has 108 divisors (see below), whose sum is σ = 40860030120. Its totient is φ = 3936522240.

The previous prime is 12990548719. The next prime is 12990548761. The reversal of 12990548736 is 63784509921.

12990548736 is a `hidden beast` number, since 1 + 2 + 9 + 90 + 548 + 7 + 3 + 6 = 666.

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, 230941 + ... + 281628.

It is a 1-persistent number, because it is pandigital, but 2⋅12990548736 = 25981097472 is not.

Almost surely, 212990548736 is an apocalyptic number.

12990548736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12990548736 is an abundant number, since it is smaller than the sum of its proper divisors (27869481384).

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

12990548736 is a wasteful number, since it uses less digits than its factorization.

12990548736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512602 (or 512585 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 12990548736 in words is "twelve billion, nine hundred ninety million, five hundred forty-eight thousand, seven hundred thirty-six".

Divisors: 1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 128 132 144 176 192 198 256 264 288 352 384 396 528 576 704 768 792 1056 1152 1408 1584 2112 2304 2816 3168 4224 6336 8448 12672 25344 512569 1025138 1537707 2050276 3075414 4100552 4613121 5638259 6150828 8201104 9226242 11276518 12301656 16402208 16914777 18452484 22553036 24603312 32804416 33829554 36904968 45106072 49206624 50744331 65608832 67659108 73809936 90212144 98413248 101488662 131217664 135318216 147619872 180424288 196826496 202977324 270636432 295239744 360848576 393652992 405954648 541272864 590479488 721697152 811909296 1082545728 1180958976 1443394304 1623818592 2165091456 3247637184 4330182912 6495274368 12990548736