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47897328658608 = 2434111310312591993
BaseRepresentation
bin10101110001111111101110…
…10000101010100010110000
320021120221101012001212110000
422320333313100222202300
522234222212114033413
6245511421245110000
713042316312052162
oct1270776720524260
9207527335055400
1047897328658608
111429716338a950
1254569a6558300
1320959110bacc0
14bb8359004932
15580dbd174073
hex2b8ff742a8b0

47897328658608 has 800 divisors, whose sum is σ = 164658966151680. Its totient is φ = 13250587668480.

The previous prime is 47897328658607. The next prime is 47897328658631. The reversal of 47897328658608 is 80685682379874.

47897328658608 is a `hidden beast` number, since 4 + 7 + 8 + 9 + 7 + 3 + 28 + 6 + 586 + 0 + 8 = 666.

It is a super-2 number, since 2×478973286586082 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (47897328658603) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 24032778060 + ... + 24032780052.

Almost surely, 247897328658608 is an apocalyptic number.

47897328658608 is a gapful number since it is divisible by the number (48) 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 47897328658608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82329483075840).

47897328658608 is an abundant number, since it is smaller than the sum of its proper divisors (116761637493072).

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

47897328658608 is a wasteful number, since it uses less digits than its factorization.

47897328658608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399 (or 3384 counting only the distinct ones).

The product of its (nonzero) digits is 7803371520, while the sum is 81.

The spelling of 47897328658608 in words is "forty-seven trillion, eight hundred ninety-seven billion, three hundred twenty-eight million, six hundred fifty-eight thousand, six hundred eight".