| Base | Representation |
|---|---|
| bin | 101000010001101… |
| … | …0110100010100100 |
| 3 | 10111011222111112100 |
| 4 | 1100203112202210 |
| 5 | 10231432212034 |
| 6 | 342034052100 |
| 7 | 45330042564 |
| oct | 12043264244 |
| 9 | 3434874470 |
| 10 | 1351444644 |
| 11 | 633945400 |
| 12 | 31871a030 |
| 13 | 186caaab4 |
| 14 | cb6b2da4 |
| 15 | 7d9a3099 |
| hex | 508d68a4 |
1351444644 has 81 divisors (see below), whose sum is σ = 3761697121. Its totient is φ = 408793440.
The previous prime is 1351444639. The next prime is 1351444663. The reversal of 1351444644 is 4464441531.
The square root of 1351444644 is 36762.
It is a perfect power (a square), and thus also a powerful number.
1351444644 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 4 + 4 + 4 + 644 = 666.
It can be written as a sum of positive squares in only one way, i.e., 118592100 + 1232852544 = 10890^2 + 35112^2 .
It is a super-3 number, since 3×13514446443 (a number of 28 digits) contains 333 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 = 1351444599 and 1351444608.
It is an unprimeable number.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2426014 + ... + 2426570.
Almost surely, 21351444644 is an apocalyptic number.
1351444644 is the 36762-nd square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1351444644
1351444644 is an abundant number, since it is smaller than the sum of its proper divisors (2410252477).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1351444644 is a wasteful number, since it uses less digits than its factorization.
1351444644 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1146 (or 573 counting only the distinct ones).
The product of its digits is 92160, while the sum is 36.
The cubic root of 1351444644 is about 1105.6035397194.
Multiplying 1351444644 by its sum of digits (36), we get a square (48652007184 = 2205722).
1351444644 divided by its sum of digits (36) gives a square (37540129 = 61272).
The spelling of 1351444644 in words is "one billion, three hundred fifty-one million, four hundred forty-four thousand, six hundred forty-four".
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