| Base | Representation |
|---|---|
| bin | 11101010100111110… |
| … | …101010100100000000 |
| 3 | 10000021121220100201000 |
| 4 | 131110332222210000 |
| 5 | 1003443031000410 |
| 6 | 22244434212000 |
| 7 | 2163235462440 |
| oct | 352476524400 |
| 9 | 100247810630 |
| 10 | 31490484480 |
| 11 | 1239a615094 |
| 12 | 612a124000 |
| 13 | 2c7b105190 |
| 14 | 174a392120 |
| 15 | c448e3dc0 |
| hex | 754faa900 |
31490484480 has 2304 divisors, whose sum is σ = 158235033600. Its totient is φ = 5733089280.
The previous prime is 31490484479. The next prime is 31490484481. The reversal of 31490484480 is 8448409413.
31490484480 is a `hidden beast` number, since 3 + 1 + 4 + 90 + 4 + 84 + 480 = 666.
It is an interprime number because it is at equal distance from previous prime (31490484479) and next prime (31490484481).
It is a tau number, because it is divible by the number of its divisors (2304).
It is a super-2 number, since 2×314904844802 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (31490484481) by changing a digit.
It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1015822065 + ... + 1015822095.
It is an arithmetic number, because the mean of its divisors is an integer number (68678400).
Almost surely, 231490484480 is an apocalyptic number.
31490484480 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 31490484480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79117516800).
31490484480 is an abundant number, since it is smaller than the sum of its proper divisors (126744549120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31490484480 is a wasteful number, since it uses less digits than its factorization.
31490484480 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 117 (or 97 counting only the distinct ones).
The product of its (nonzero) digits is 442368, while the sum is 45.
The spelling of 31490484480 in words is "thirty-one billion, four hundred ninety million, four hundred eighty-four thousand, four hundred eighty".
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