Base | Representation |
---|---|
bin | 10001010100001111101001… |
… | …11010111010110001011111 |
3 | 11222211022112120112111212222 |
4 | 20222013310322322301133 |
5 | 14442341240001233311 |
6 | 212553125354215555 |
7 | 11010054654624134 |
oct | 1052076472726137 |
9 | 158738476474788 |
10 | 38078994164831 |
11 | 11151235541534 |
12 | 432bb6a1245bb |
13 | 1832aab967079 |
14 | 959066d7858b |
15 | 4607c6c77adb |
hex | 22a1f4ebac5f |
38078994164831 has 2 divisors, whose sum is σ = 38078994164832. Its totient is φ = 38078994164830.
The previous prime is 38078994164807. The next prime is 38078994164851. The reversal of 38078994164831 is 13846149987083.
It is a strong prime.
It is an emirp because it is prime and its reverse (13846149987083) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 38078994164831 - 26 = 38078994164767 is a prime.
It is a super-2 number, since 2×380789941648312 (a number of 28 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38078994164851) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19039497082415 + 19039497082416.
It is an arithmetic number, because the mean of its divisors is an integer number (19039497082416).
Almost surely, 238078994164831 is an apocalyptic number.
38078994164831 is a deficient number, since it is larger than the sum of its proper divisors (1).
38078994164831 is an equidigital number, since it uses as much as digits as its factorization.
38078994164831 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 250822656, while the sum is 71.
The spelling of 38078994164831 in words is "thirty-eight trillion, seventy-eight billion, nine hundred ninety-four million, one hundred sixty-four thousand, eight hundred thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •