| Base | Representation |
|---|---|
| bin | 10000011011010001011110… |
| … | …101011110100100011100000 |
| 3 | 100110210100122121001022020100 |
| 4 | 100123101132223310203200 |
| 5 | 33432112014221330410 |
| 6 | 413351540414542400 |
| 7 | 21134244235020540 |
| oct | 2033213653644340 |
| 9 | 313710577038210 |
| 10 | 72242938464480 |
| 11 | 21023070436a93 |
| 12 | 81291b9b07a00 |
| 13 | 314063135a174 |
| 14 | 13ba810d4d320 |
| 15 | 8543108ba8c0 |
| hex | 41b45eaf48e0 |
72242938464480 has 576 divisors, whose sum is σ = 292747136048640. Its totient is φ = 15873019932672.
The previous prime is 72242938464479. The next prime is 72242938464481. The reversal of 72242938464480 is 8446483924227.
It is a happy number.
72242938464480 is a `hidden beast` number, since 7 + 2 + 2 + 4 + 2 + 93 + 8 + 4 + 64 + 480 = 666.
It is an interprime number because it is at equal distance from previous prime (72242938464479) and next prime (72242938464481).
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72242938464481) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65812287 + ... + 66900993.
It is an arithmetic number, because the mean of its divisors is an integer number (508241555640).
Almost surely, 272242938464480 is an apocalyptic number.
72242938464480 is a gapful number since it is divisible by the number (70) 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 72242938464480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146373568024320).
72242938464480 is an abundant number, since it is smaller than the sum of its proper divisors (220504197584160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72242938464480 is a wasteful number, since it uses less digits than its factorization.
72242938464480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1088991 (or 1088980 counting only the distinct ones).
The product of its (nonzero) digits is 148635648, while the sum is 63.
The spelling of 72242938464480 in words is "seventy-two trillion, two hundred forty-two billion, nine hundred thirty-eight million, four hundred sixty-four thousand, four hundred eighty".
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