| Base | Representation |
|---|---|
| bin | 100101111010101… |
| … | …0101101001001000 |
| 3 | 10021200000012010000 |
| 4 | 1023311111221020 |
| 5 | 10101200222410 |
| 6 | 330125123000 |
| 7 | 43346101062 |
| oct | 11365255110 |
| 9 | 3250005100 |
| 10 | 1272273480 |
| 11 | 5a318a995 |
| 12 | 2b60b9460 |
| 13 | 17377aa5a |
| 14 | c0d84732 |
| 15 | 76a64dc0 |
| hex | 4bd55a48 |
1272273480 has 320 divisors, whose sum is σ = 4516300800. Its totient is φ = 320785920.
The previous prime is 1272273479. The next prime is 1272273481. The reversal of 1272273480 is 843722721.
It is an interprime number because it is at equal distance from previous prime (1272273479) and next prime (1272273481).
It is a super-2 number, since 2×12722734802 = 3237359615822620800, which contains 22 as substring.
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (1272273481) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5323201 + ... + 5323439.
It is an arithmetic number, because the mean of its divisors is an integer number (14113440).
Almost surely, 21272273480 is an apocalyptic number.
1272273480 is a gapful number since it is divisible by the number (10) 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 1272273480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2258150400).
1272273480 is an abundant number, since it is smaller than the sum of its proper divisors (3244027320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1272273480 is a wasteful number, since it uses less digits than its factorization.
1272273480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 346 (or 333 counting only the distinct ones).
The product of its (nonzero) digits is 37632, while the sum is 36.
The square root of 1272273480 is about 35668.9427934162. The cubic root of 1272273480 is about 1083.5779482862.
The spelling of 1272273480 in words is "one billion, two hundred seventy-two million, two hundred seventy-three thousand, four hundred eighty".
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