| Base | Representation |
|---|---|
| bin | 101111000010010101… |
| … | …1000010000111111100 |
| 3 | 100122201120100211001110 |
| 4 | 1132010223002013330 |
| 5 | 3123332042334322 |
| 6 | 114223045242020 |
| 7 | 10204060602210 |
| oct | 1360453020774 |
| 9 | 318646324043 |
| 10 | 101010121212 |
| 11 | 39924642120 |
| 12 | 176b0103310 |
| 13 | 96a9b816c0 |
| 14 | 4c63284940 |
| 15 | 2962c69c0c |
| hex | 1784ac21fc |
101010121212 has 768 divisors, whose sum is σ = 356760391680. Its totient is φ = 21366374400.
The previous prime is 101010121193. The next prime is 101010121231. The reversal of 101010121212 is 212121010101.
101010121212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is an interprime number because it is at equal distance from previous prime (101010121193) and next prime (101010121231).
It is a Harshad number since it is a multiple of its sum of digits (12).
It is an alternating number because its digits alternate between odd and even.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 219110662 + ... + 219111122.
It is an arithmetic number, because the mean of its divisors is an integer number (464531760).
Almost surely, 2101010121212 is an apocalyptic number.
101010121212 is a gapful number since it is divisible by the number (12) 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 101010121212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178380195840).
101010121212 is an abundant number, since it is smaller than the sum of its proper divisors (255750270468).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
101010121212 is a wasteful number, since it uses less digits than its factorization.
101010121212 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 582 (or 580 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 101010121212 its reverse (212121010101), we get a palindrome (313131131313).
Subtracting 101010121212 from its reverse (212121010101), we obtain a square (111110888889 = 3333332).
It can be divided in two parts, 1010101 and 21212, that multiplied together give a palindrome (21426262412).
The spelling of 101010121212 in words is "one hundred one billion, ten million, one hundred twenty-one thousand, two hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.114 sec. • engine limits •