Base | Representation |
---|---|
bin | 1101101111111011111101… |
… | …01100010110010010111101 |
3 | 10222001101021100022100201012 |
4 | 12313331332230112102331 |
5 | 12430330022442221141 |
6 | 144145254120125005 |
7 | 6240235424453030 |
oct | 667757654262275 |
9 | 128041240270635 |
10 | 30234400351421 |
11 | 96a7378875452 |
12 | 3483767606765 |
13 | 13b412667a446 |
14 | 7674d2083017 |
15 | 3766ed32eceb |
hex | 1b7f7eb164bd |
30234400351421 has 16 divisors (see below), whose sum is σ = 34995592458240. Its totient is φ = 25583792598000.
The previous prime is 30234400351409. The next prime is 30234400351471. The reversal of 30234400351421 is 12415300443203.
It is not a de Polignac number, because 30234400351421 - 218 = 30234400089277 is a prime.
It is a super-2 number, since 2×302344003514212 (a number of 28 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30234400351471) 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, 613046 + ... + 7800296.
It is an arithmetic number, because the mean of its divisors is an integer number (2187224528640).
Almost surely, 230234400351421 is an apocalyptic number.
It is an amenable number.
30234400351421 is a deficient number, since it is larger than the sum of its proper divisors (4761192106819).
30234400351421 is an equidigital number, since it uses as much as digits as its factorization.
30234400351421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7194944.
The product of its (nonzero) digits is 34560, while the sum is 32.
Adding to 30234400351421 its reverse (12415300443203), we get a palindrome (42649700794624).
The spelling of 30234400351421 in words is "thirty trillion, two hundred thirty-four billion, four hundred million, three hundred fifty-one thousand, four hundred twenty-one".
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