Base | Representation |
---|---|
bin | 101001000001111111000… |
… | …011110001001111010101 |
3 | 100222112221212202010211111 |
4 | 221001333003301033111 |
5 | 332144100320200400 |
6 | 5555153101335021 |
7 | 410466031412434 |
oct | 51017703611725 |
9 | 10875855663744 |
10 | 2819630240725 |
11 | 997886843a21 |
12 | 396568567471 |
13 | 175b754047ac |
14 | 9a683d6911b |
15 | 4d52984c3ba |
hex | 2907f0f13d5 |
2819630240725 has 24 divisors (see below), whose sum is σ = 3507955545672. Its totient is φ = 2248213094400.
The previous prime is 2819630240711. The next prime is 2819630240737. The reversal of 2819630240725 is 5270420369182.
It is a happy number.
It can be written as a sum of positive squares in 12 ways, for example, as 607797988996 + 2211832251729 = 779614^2 + 1487223^2 .
It is not a de Polignac number, because 2819630240725 - 215 = 2819630207957 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79648629 + ... + 79684021.
It is an arithmetic number, because the mean of its divisors is an integer number (146164814403).
It is a 1-persistent number, because it is pandigital, but 2⋅2819630240725 = 5639260481450 is not.
Almost surely, 22819630240725 is an apocalyptic number.
2819630240725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2819630240725 is a deficient number, since it is larger than the sum of its proper divisors (688325304947).
2819630240725 is a wasteful number, since it uses less digits than its factorization.
2819630240725 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45897 (or 45892 counting only the distinct ones).
The product of its (nonzero) digits is 1451520, while the sum is 49.
The spelling of 2819630240725 in words is "two trillion, eight hundred nineteen billion, six hundred thirty million, two hundred forty thousand, seven hundred twenty-five".
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