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38130684480 = 26325717313797
BaseRepresentation
bin100011100000110001…
…000001001001000000
310122102101121110200100
4203200301001021000
51111042423400410
625303400522400
72516625320220
oct434061011100
9118371543610
1038130684480
1115197860689
127481a80400
133798a033c5
141bba210080
15ed283a8c0
hex8e0c41240

38130684480 has 1344 divisors, whose sum is σ = 169988861952. Its totient is φ = 7644119040.

The previous prime is 38130684467. The next prime is 38130684499. The reversal of 38130684480 is 8448603183.

38130684480 is a `hidden beast` number, since 3 + 81 + 30 + 68 + 4 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 393099792 + ... + 393099888.

It is an arithmetic number, because the mean of its divisors is an integer number (126479808).

Almost surely, 238130684480 is an apocalyptic number.

38130684480 is a gapful number since it is divisible by the number (30) 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 38130684480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84994430976).

38130684480 is an abundant number, since it is smaller than the sum of its proper divisors (131858177472).

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

38130684480 is a wasteful number, since it uses less digits than its factorization.

38130684480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The spelling of 38130684480 in words is "thirty-eight billion, one hundred thirty million, six hundred eighty-four thousand, four hundred eighty".