Base | Representation |
---|---|
bin | 1011111011101111100100… |
… | …1101111011111010001110 |
3 | 1201110100121211121121100200 |
4 | 2332323321031323322032 |
5 | 3204433312343131110 |
6 | 43523413120434330 |
7 | 2522650614606252 |
oct | 276737115737216 |
9 | 51410554547320 |
10 | 13121011302030 |
11 | 41a96538a8015 |
12 | 157ab341789a6 |
13 | 7423c9539048 |
14 | 3350bb7bc262 |
15 | 17b4933026c0 |
hex | beef937be8e |
13121011302030 has 48 divisors (see below), whose sum is σ = 34133698909440. Its totient is φ = 3496980498624.
The previous prime is 13121011302011. The next prime is 13121011302031. The reversal of 13121011302030 is 3020311012131.
13121011302030 is a `hidden beast` number, since 1 + 312 + 10 + 11 + 302 + 0 + 30 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 13121011301994 and 13121011302012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13121011302031) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40584942 + ... + 40906961.
It is an arithmetic number, because the mean of its divisors is an integer number (711118727280).
Almost surely, 213121011302030 is an apocalyptic number.
13121011302030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13121011302030 is an abundant number, since it is smaller than the sum of its proper divisors (21012687607410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13121011302030 is a wasteful number, since it uses less digits than its factorization.
13121011302030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 81493705 (or 81493702 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
Adding to 13121011302030 its reverse (3020311012131), we get a palindrome (16141322314161).
The spelling of 13121011302030 in words is "thirteen trillion, one hundred twenty-one billion, eleven million, three hundred two thousand, thirty".
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