Base | Representation |
---|---|
bin | 101000011110000111… |
… | …000101001000110101 |
3 | 11011011102221212112222 |
4 | 220132013011020311 |
5 | 1202443420023433 |
6 | 31543552052125 |
7 | 3065565043433 |
oct | 503607051065 |
9 | 134142855488 |
10 | 43454845493 |
11 | 1747a144654 |
12 | 8508b34045 |
13 | 4136a6c137 |
14 | 2163373d53 |
15 | 11e4e74b98 |
hex | a1e1c5235 |
43454845493 has 2 divisors, whose sum is σ = 43454845494. Its totient is φ = 43454845492.
The previous prime is 43454845459. The next prime is 43454845501. The reversal of 43454845493 is 39454845434.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 23911364689 + 19543480804 = 154633^2 + 139798^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-43454845493 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (43454845403) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21727422746 + 21727422747.
It is an arithmetic number, because the mean of its divisors is an integer number (21727422747).
Almost surely, 243454845493 is an apocalyptic number.
It is an amenable number.
43454845493 is a deficient number, since it is larger than the sum of its proper divisors (1).
43454845493 is an equidigital number, since it uses as much as digits as its factorization.
43454845493 is an evil number, because the sum of its binary digits is even.
The product of its digits is 16588800, while the sum is 53.
The spelling of 43454845493 in words is "forty-three billion, four hundred fifty-four million, eight hundred forty-five thousand, four hundred ninety-three".
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