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499011978813440 = 2135173459715319
BaseRepresentation
bin111000101110110010100011…
…1101111000110000000000000
32102102212002010210101222210112
41301131211013233012000000
51010401303013034012230
64525150534402450452
7210052266011432111
oct16135450757060000
92372762123358715
10499011978813440
111350008789087a4
1247b73a46063a28
1318559821052451
148b32446cb8208
153ca56a7b1ed95
hex1c5d947bc6000

499011978813440 has 224 divisors, whose sum is σ = 1204818596118720. Its totient is φ = 198394885177344.

The previous prime is 499011978813319. The next prime is 499011978813473. The reversal of 499011978813440 is 44318879110994.

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, 32574702101 + ... + 32574717419.

Almost surely, 2499011978813440 is an apocalyptic number.

499011978813440 is a gapful number since it is divisible by the number (40) 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 499011978813440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602409298059360).

499011978813440 is an abundant number, since it is smaller than the sum of its proper divisors (705806617305280).

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

499011978813440 is a wasteful number, since it uses less digits than its factorization.

499011978813440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20120 (or 20096 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 68.

The spelling of 499011978813440 in words is "four hundred ninety-nine trillion, eleven billion, nine hundred seventy-eight million, eight hundred thirteen thousand, four hundred forty".