Base | Representation |
---|---|
bin | 11110111001001100101… |
… | …010011010011100011001 |
3 | 21111221211112002211022211 |
4 | 132321030222122130121 |
5 | 234240401001443001 |
6 | 4303143122315121 |
7 | 306244630342363 |
oct | 36711452323431 |
9 | 7457745084284 |
10 | 2123000031001 |
11 | 7493a5197673 |
12 | 2a35504b8aa1 |
13 | 1252761440c5 |
14 | 74a7a409d33 |
15 | 3a356531351 |
hex | 1ee4ca9a719 |
2123000031001 has 16 divisors (see below), whose sum is σ = 2184471273600. Its totient is φ = 2062010793600.
The previous prime is 2123000030989. The next prime is 2123000031149. The reversal of 2123000031001 is 1001300003212.
It is a cyclic number.
It is not a de Polignac number, because 2123000031001 - 27 = 2123000030873 is a prime.
It is a super-2 number, since 2×21230000310012 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2123000061001) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8169610 + ... + 8425468.
It is an arithmetic number, because the mean of its divisors is an integer number (136529454600).
Almost surely, 22123000031001 is an apocalyptic number.
It is an amenable number.
2123000031001 is a deficient number, since it is larger than the sum of its proper divisors (61471242599).
2123000031001 is a wasteful number, since it uses less digits than its factorization.
2123000031001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 256800.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 2123000031001 its reverse (1001300003212), we get a palindrome (3124300034213).
The spelling of 2123000031001 in words is "two trillion, one hundred twenty-three billion, thirty-one thousand, one".
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