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5481102816 = 253471811669
BaseRepresentation
bin1010001101011001…
…01111110111100000
3112010222122212120000
411012230233313200
542211130242231
62303515020000
7252553414410
oct50654576740
915128585500
105481102816
112362a37742
12108b73a600
13694728507
1439dd38640
152212da6e6
hex146b2fde0

5481102816 has 240 divisors, whose sum is σ = 18535476960. Its totient is φ = 1556444160.

The previous prime is 5481102811. The next prime is 5481102817. The reversal of 5481102816 is 6182011845.

5481102816 is a `hidden beast` number, since 548 + 1 + 102 + 8 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5481102811) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3283230 + ... + 3284898.

It is an arithmetic number, because the mean of its divisors is an integer number (77231154).

Almost surely, 25481102816 is an apocalyptic number.

5481102816 is a gapful number since it is divisible by the number (56) 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 5481102816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9267738480).

5481102816 is an abundant number, since it is smaller than the sum of its proper divisors (13054374144).

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

5481102816 is a wasteful number, since it uses less digits than its factorization.

5481102816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879 (or 1862 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 5481102816 is about 74034.4704580238. The cubic root of 5481102816 is about 1763.1502223808.

The spelling of 5481102816 in words is "five billion, four hundred eighty-one million, one hundred two thousand, eight hundred sixteen".