Base | Representation |
---|---|
bin | 100110101100010… |
… | …0000100100001000 |
3 | 10100110220222021120 |
4 | 1031120200210020 |
5 | 10124324123342 |
6 | 332454235240 |
7 | 44113055052 |
oct | 11530404410 |
9 | 3313828246 |
10 | 1298270472 |
11 | 606926904 |
12 | 302955b20 |
13 | 178c809a5 |
14 | c45d08d2 |
15 | 78e9caec |
hex | 4d620908 |
1298270472 has 32 divisors (see below), whose sum is σ = 3314736000. Its totient is φ = 423548864.
The previous prime is 1298270423. The next prime is 1298270473. The reversal of 1298270472 is 2740728921.
It is not an unprimeable number, because it can be changed into a prime (1298270473) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574347 + ... + 576602.
It is an arithmetic number, because the mean of its divisors is an integer number (103585500).
Almost surely, 21298270472 is an apocalyptic number.
1298270472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1298270472 is an abundant number, since it is smaller than the sum of its proper divisors (2016465528).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1298270472 is a wasteful number, since it uses less digits than its factorization.
1298270472 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1151005 (or 1151001 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 42.
The square root of 1298270472 is about 36031.5205341101. The cubic root of 1298270472 is about 1090.9086696615.
The spelling of 1298270472 in words is "one billion, two hundred ninety-eight million, two hundred seventy thousand, four hundred seventy-two".
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