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49638888480 = 2535897691511
BaseRepresentation
bin101110001110101101…
…010101010000100000
311202010102022210202010
4232032231111100200
51303130023412410
634445341352520
73405045406326
oct561655252040
9152112283663
1049638888480
111a062949685
129753b68740
1348b0cc607c
14258c7add16
151457d13c20
hexb8eb55420

49638888480 has 192 divisors, whose sum is σ = 158429779200. Its totient is φ = 13062635520.

The previous prime is 49638888479. The next prime is 49638888493. The reversal of 49638888480 is 8488883694.

It is a happy 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, 32850925 + ... + 32852435.

It is an arithmetic number, because the mean of its divisors is an integer number (825155100).

Almost surely, 249638888480 is an apocalyptic number.

49638888480 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 49638888480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79214889600).

49638888480 is an abundant number, since it is smaller than the sum of its proper divisors (108790890720).

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

49638888480 is a wasteful number, since it uses less digits than its factorization.

49638888480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 84934656, while the sum is 66.

The spelling of 49638888480 in words is "forty-nine billion, six hundred thirty-eight million, eight hundred eighty-eight thousand, four hundred eighty".