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14985809957888 = 210711316130951
BaseRepresentation
bin1101101000010010011111…
…1000010001010000000000
31222001121222212021112220022
43122010213320101100000
53431011414322123023
651512215215433012
73104455224626330
oct332044770212000
958047885245808
1014985809957888
1148584a0050950
121820425525768
13849204431c63
1439b46208d0c0
151aec369e27c8
hexda127e11400

14985809957888 has 176 divisors, whose sum is σ = 38553780461568. Its totient is φ = 5650283520000.

The previous prime is 14985809957879. The next prime is 14985809957917. The reversal of 14985809957888 is 88875990858941.

It is a tau number, because it is divible by the number of its divisors (176).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 621188 + ... + 5509763.

Almost surely, 214985809957888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14985809957888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19276890230784).

14985809957888 is an abundant number, since it is smaller than the sum of its proper divisors (23567970503680).

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

14985809957888 is a wasteful number, since it uses less digits than its factorization.

14985809957888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131020 (or 6131002 counting only the distinct ones).

The product of its (nonzero) digits is 16721510400, while the sum is 89.

The spelling of 14985809957888 in words is "fourteen trillion, nine hundred eighty-five billion, eight hundred nine million, nine hundred fifty-seven thousand, eight hundred eighty-eight".