| Base | Representation |
|---|---|
| bin | 11101000010001111001… |
| … | …001000111110100001100 |
| 3 | 21001202010112122221122000 |
| 4 | 131002033021013310030 |
| 5 | 230142301141433130 |
| 6 | 4124340202352300 |
| 7 | 264103363134060 |
| oct | 35021711076414 |
| 9 | 7052115587560 |
| 10 | 1995266358540 |
| 11 | 6aa20792aa04 |
| 12 | 2828427bb690 |
| 13 | 1161ca954cb0 |
| 14 | 6c7ddd25aa0 |
| 15 | 36d7c63c260 |
| hex | 1d08f247d0c |
1995266358540 has 384 divisors, whose sum is σ = 7656582635520. Its totient is φ = 420065243136.
The previous prime is 1995266358539. The next prime is 1995266358541. The reversal of 1995266358540 is 458536625991.
1995266358540 is a `hidden beast` number, since 1 + 9 + 9 + 5 + 2 + 6 + 6 + 3 + 585 + 40 = 666.
It is an interprime number because it is at equal distance from previous prime (1995266358539) and next prime (1995266358541).
It is a Harshad number since it is a multiple of its sum of digits (63).
It is not an unprimeable number, because it can be changed into a prime (1995266358541) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 22707972 + ... + 22795668.
It is an arithmetic number, because the mean of its divisors is an integer number (19939017280).
Almost surely, 21995266358540 is an apocalyptic number.
1995266358540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1995266358540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3828291317760).
1995266358540 is an abundant number, since it is smaller than the sum of its proper divisors (5661316276980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1995266358540 is a wasteful number, since it uses less digits than its factorization.
1995266358540 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 88198 (or 88190 counting only the distinct ones).
The product of its (nonzero) digits is 69984000, while the sum is 63.
The spelling of 1995266358540 in words is "one trillion, nine hundred ninety-five billion, two hundred sixty-six million, three hundred fifty-eight thousand, five hundred forty".
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