| Base | Representation |
|---|---|
| bin | 111010110010001… |
| … | …0110011101010101 |
| 3 | 12002110112112011200 |
| 4 | 1311210112131111 |
| 5 | 13014422312240 |
| 6 | 523420423113 |
| 7 | 66610443201 |
| oct | 16544263525 |
| 9 | 5073475150 |
| 10 | 1972463445 |
| 11 | 922449a87 |
| 12 | 4706a7a99 |
| 13 | 255855744 |
| 14 | 149d6bb01 |
| 15 | b8273930 |
| hex | 75916755 |
1972463445 has 24 divisors (see below), whose sum is σ = 3421017600. Its totient is φ = 1051340256.
The previous prime is 1972463419. The next prime is 1972463447. The reversal of 1972463445 is 5443642791.
1972463445 is a `hidden beast` number, since 1 + 9 + 7 + 2 + 4 + 634 + 4 + 5 = 666.
It is not a de Polignac number, because 1972463445 - 25 = 1972463413 is a prime.
It is a super-2 number, since 2×19724634452 = 7781224083722536050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 1972463445.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1972463447) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66696 + ... + 91614.
It is an arithmetic number, because the mean of its divisors is an integer number (142542400).
Almost surely, 21972463445 is an apocalyptic number.
1972463445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
1972463445 is a deficient number, since it is larger than the sum of its proper divisors (1448554155).
1972463445 is a wasteful number, since it uses less digits than its factorization.
1972463445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26689 (or 26686 counting only the distinct ones).
The product of its digits is 725760, while the sum is 45.
The square root of 1972463445 is about 44412.4244440675. The cubic root of 1972463445 is about 1254.1119933096. Note that the first 3 decimals are identical.
It can be divided in two parts, 197 and 2463445, that added together give a palindrome (2463642).
The spelling of 1972463445 in words is "one billion, nine hundred seventy-two million, four hundred sixty-three thousand, four hundred forty-five".
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