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2028302401 is a prime number
BaseRepresentation
bin111100011100101…
…0111000001000001
312020100121102211011
41320321113001001
513123221134101
6533133320521
7101156200036
oct17071270101
95210542734
102028302401
11950a18684
12487336141
132642a6748
1415354538d
15bd103751
hex78e57041

2028302401 has 2 divisors, whose sum is σ = 2028302402. Its totient is φ = 2028302400.

The previous prime is 2028302359. The next prime is 2028302407. The reversal of 2028302401 is 1042038202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1481865025 + 546437376 = 38495^2 + 23376^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028302401 - 211 = 2028300353 is a prime.

It is a super-3 number, since 3×20283024013 (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2028302407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014151200 + 1014151201.

It is an arithmetic number, because the mean of its divisors is an integer number (1014151201).

Almost surely, 22028302401 is an apocalyptic number.

It is an amenable number.

2028302401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028302401 is an equidigital number, since it uses as much as digits as its factorization.

2028302401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 2028302401 is about 45036.6783966136. The cubic root of 2028302401 is about 1265.8363658824.

The spelling of 2028302401 in words is "two billion, twenty-eight million, three hundred two thousand, four hundred one".