| Base | Representation |
|---|---|
| bin | 10101011001010000011101… |
| … | …10110100100000000000000 |
| 3 | 20011120200100200121001021000 |
| 4 | 22230220032312210000000 |
| 5 | 22131310403130212030 |
| 6 | 244021124005532000 |
| 7 | 12624025320515532 |
| oct | 1254501666440000 |
| 9 | 204520320531230 |
| 10 | 47047320944640 |
| 11 | 13a99725174525 |
| 12 | 533a104714000 |
| 13 | 203370a900743 |
| 14 | b89161301852 |
| 15 | 568c1e9b6860 |
| hex | 2aca0eda4000 |
47047320944640 has 1920 divisors, whose sum is σ = 183604248576000. Its totient is φ = 11388208545792.
The previous prime is 47047320944639. The next prime is 47047320944641. The reversal of 47047320944640 is 4644902374074.
47047320944640 is a `hidden beast` number, since 4 + 7 + 0 + 4 + 73 + 20 + 94 + 464 + 0 = 666.
It is an interprime number because it is at equal distance from previous prime (47047320944639) and next prime (47047320944641).
It is a tau number, because it is divible by the number of its divisors (1920).
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (47047320944641) by changing a digit.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 122838957889 + ... + 122838958271.
It is an arithmetic number, because the mean of its divisors is an integer number (95627212800).
Almost surely, 247047320944640 is an apocalyptic number.
47047320944640 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 47047320944640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91802124288000).
47047320944640 is an abundant number, since it is smaller than the sum of its proper divisors (136556927631360).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47047320944640 is a wasteful number, since it uses less digits than its factorization.
47047320944640 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 560 (or 528 counting only the distinct ones).
The product of its (nonzero) digits is 16257024, while the sum is 54.
The spelling of 47047320944640 in words is "forty-seven trillion, forty-seven billion, three hundred twenty million, nine hundred forty-four thousand, six hundred forty".
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