| Base | Representation |
|---|---|
| bin | 101010101000111… |
| … | …1000000100000000 |
| 3 | 10200201012121021000 |
| 4 | 1111101320010000 |
| 5 | 10412232440230 |
| 6 | 353545532000 |
| 7 | 50312112111 |
| oct | 12521700400 |
| 9 | 3621177230 |
| 10 | 1430749440 |
| 11 | 67469125a |
| 12 | 33b1a4000 |
| 13 | 19a556903 |
| 14 | d8038208 |
| 15 | 8591ab60 |
| hex | 55478100 |
1430749440 has 144 divisors (see below), whose sum is σ = 5077296000. Its totient is φ = 381523968.
The previous prime is 1430749421. The next prime is 1430749451. The reversal of 1430749440 is 449470341.
1430749440 is a `hidden beast` number, since 143 + 0 + 74 + 9 + 440 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
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 a junction number, because it is equal to n+sod(n) for n = 1430749395 and 1430749404.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13861 + ... + 55259.
It is an arithmetic number, because the mean of its divisors is an integer number (35259000).
Almost surely, 21430749440 is an apocalyptic number.
1430749440 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 1430749440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2538648000).
1430749440 is an abundant number, since it is smaller than the sum of its proper divisors (3646546560).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1430749440 is an equidigital number, since it uses as much as digits as its factorization.
1430749440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41429 (or 41409 counting only the distinct ones).
The product of its (nonzero) digits is 48384, while the sum is 36.
The square root of 1430749440 is about 37825.2487103522. The cubic root of 1430749440 is about 1126.8199519899.
The spelling of 1430749440 in words is "one billion, four hundred thirty million, seven hundred forty-nine thousand, four hundred forty".
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