| Base | Representation |
|---|---|
| bin | 10100101111110011… |
| … | …11111110100010100 |
| 3 | 1001202021001022112000 |
| 4 | 22113321333310110 |
| 5 | 140302423412222 |
| 6 | 5041132355300 |
| 7 | 543010445361 |
| oct | 122771776424 |
| 9 | 31667038460 |
| 10 | 11138497812 |
| 11 | 47a64342a2 |
| 12 | 21aa315b30 |
| 13 | 108682a010 |
| 14 | 779443468 |
| 15 | 452cea9ac |
| hex | 297e7fd14 |
11138497812 has 96 divisors (see below), whose sum is σ = 31563369600. Its totient is φ = 3376048896.
The previous prime is 11138497807. The next prime is 11138497817. The reversal of 11138497812 is 21879483111.
It is a happy number.
11138497812 is a `hidden beast` number, since 11 + 138 + 497 + 8 + 12 = 666.
It is an interprime number because it is at equal distance from previous prime (11138497807) and next prime (11138497817).
It is a super-2 number, since 2×111384978122 (a number of 21 digits) contains 22 as substring.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (11138497817) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34864 + ... + 153272.
It is an arithmetic number, because the mean of its divisors is an integer number (328785100).
Almost surely, 211138497812 is an apocalyptic number.
11138497812 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 11138497812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15781684800).
11138497812 is an abundant number, since it is smaller than the sum of its proper divisors (20424871788).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11138497812 is a wasteful number, since it uses less digits than its factorization.
11138497812 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 118502 (or 118494 counting only the distinct ones).
The product of its digits is 96768, while the sum is 45.
The spelling of 11138497812 in words is "eleven billion, one hundred thirty-eight million, four hundred ninety-seven thousand, eight hundred twelve".
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