| Base | Representation |
|---|---|
| bin | 101000111000100… |
| … | …0011011001000100 |
| 3 | 10112121022100021100 |
| 4 | 1101301003121010 |
| 5 | 10302141012234 |
| 6 | 344042420100 |
| 7 | 45665136051 |
| oct | 12161033104 |
| 9 | 3477270240 |
| 10 | 1371813444 |
| 11 | 644397821 |
| 12 | 323501630 |
| 13 | 18b290041 |
| 14 | d0296028 |
| 15 | 80678399 |
| hex | 51c43644 |
1371813444 has 27 divisors (see below), whose sum is σ = 3468201373. Its totient is φ = 457197072.
The previous prime is 1371813439. The next prime is 1371813451. The reversal of 1371813444 is 4443181731.
The square root of 1371813444 is 37038.
It is a perfect power (a square), and thus also a powerful number.
1371813444 is a `hidden beast` number, since 1 + 37 + 181 + 3 + 444 = 666.
It can be written as a sum of positive squares in only one way, i.e., 11088900 + 1360724544 = 3330^2 + 36888^2 .
It is a super-2 number, since 2×13718134442 = 3763744250278282272, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1371813399 and 1371813408.
It is an unprimeable number.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 219142 + ... + 225314.
Almost surely, 21371813444 is an apocalyptic number.
1371813444 is the 37038-th square number.
It is an amenable number.
1371813444 is an abundant number, since it is smaller than the sum of its proper divisors (2096387929).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1371813444 is an frugal number, since it uses more digits than its factorization.
1371813444 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12356 (or 6178 counting only the distinct ones).
The product of its digits is 32256, while the sum is 36.
The cubic root of 1371813444 is about 1111.1303702869.
Multiplying 1371813444 by its sum of digits (36), we get a square (49385283984 = 2222282).
1371813444 divided by its sum of digits (36) gives a square (38105929 = 61732).
It can be divided in two parts, 137181 and 3444, that added together give a square (140625 = 3752).
The spelling of 1371813444 in words is "one billion, three hundred seventy-one million, eight hundred thirteen thousand, four hundred forty-four".
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