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14991998290880 = 2651347169945131
BaseRepresentation
bin1101101000101001100010…
…1110111000101111000000
31222002012222010201102212112
43122022120232320233000
53431112103030302010
651515121241114452
73105064456610432
oct332123056705700
958065863642775
1014991998290880
114860086216036
121821671a88a28
1384997c52b760
1439b88bcc4652
151aee99e2ca05
hexda298bb8bc0

14991998290880 has 224 divisors, whose sum is σ = 39287803161600. Its totient is φ = 5414421565440.

The previous prime is 14991998290879. The next prime is 14991998290909. The reversal of 14991998290880 is 8809289919941.

It is a congruent number.

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, 332165915 + ... + 332211045.

It is an arithmetic number, because the mean of its divisors is an integer number (175391978400).

Almost surely, 214991998290880 is an apocalyptic number.

14991998290880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14991998290880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19643901580800).

14991998290880 is an abundant number, since it is smaller than the sum of its proper divisors (24295804870720).

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

14991998290880 is a wasteful number, since it uses less digits than its factorization.

14991998290880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46907 (or 46897 counting only the distinct ones).

The product of its (nonzero) digits is 241864704, while the sum is 77.

The spelling of 14991998290880 in words is "fourteen trillion, nine hundred ninety-one billion, nine hundred ninety-eight million, two hundred ninety thousand, eight hundred eighty".