| Base | Representation |
|---|---|
| bin | 101000111101001111… |
| … | …000010100100111001 |
| 3 | 11012111211112101100011 |
| 4 | 220331033002210321 |
| 5 | 1210031104311344 |
| 6 | 32111444141521 |
| 7 | 3114535360231 |
| oct | 507517024471 |
| 9 | 135454471304 |
| 10 | 43977025849 |
| 11 | 17717980469 |
| 12 | 86339978a1 |
| 13 | 41bacbbbb3 |
| 14 | 21b2860cc1 |
| 15 | 1225c1ed34 |
| hex | a3d3c2939 |
43977025849 has 3 divisors (see below), whose sum is σ = 43977235557. Its totient is φ = 43976816142.
The previous prime is 43977025837. The next prime is 43977025853. The reversal of 43977025849 is 94852077934.
The square root of 43977025849 is 209707.
It is a perfect power (a square), and thus also a powerful number.
43977025849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94852077934 = 2 ⋅47426038967.
It is not a de Polignac number, because 43977025849 - 25 = 43977025817 is a prime.
It is a super-2 number, since 2×439770258492 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 43977025793 and 43977025802.
It is not an unprimeable number, because it can be changed into a prime (43977025819) by changing a digit.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 104854 + ... + 314560.
It is an arithmetic number, because the mean of its divisors is an integer number (14659078519).
Almost surely, 243977025849 is an apocalyptic number.
43977025849 is the 209707-th square number.
43977025849 is the 104854-th centered octagonal number.
It is an amenable number.
43977025849 is a deficient number, since it is larger than the sum of its proper divisors (209708).
43977025849 is an frugal number, since it uses more digits than its factorization.
43977025849 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 419414 (or 209707 counting only the distinct ones).
The product of its (nonzero) digits is 15240960, while the sum is 58.
The spelling of 43977025849 in words is "forty-three billion, nine hundred seventy-seven million, twenty-five thousand, eight hundred forty-nine".
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