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1293228041 = 7226392409
BaseRepresentation
bin100110100010101…
…0001100000001001
310100010102210100212
41031011101200021
510122031244131
6332154210505
744022154100
oct11505214011
93303383325
101293228041
11603aa2406
12301123a35
13177c067c1
14c3a7b037
1578803a2b
hex4d151809

1293228041 has 6 divisors (see below), whose sum is σ = 1504367370. Its totient is φ = 1108481136.

The previous prime is 1293228031. The next prime is 1293228043. The reversal of 1293228041 is 1408223921.

It can be written as a sum of positive squares in only one way, i.e., 785176441 + 508051600 = 28021^2 + 22540^2 .

It is not a de Polignac number, because 1293228041 - 26 = 1293227977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1293227989 and 1293228007.

It is not an unprimeable number, because it can be changed into a prime (1293228043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13196156 + ... + 13196253.

It is an arithmetic number, because the mean of its divisors is an integer number (250727895).

Almost surely, 21293228041 is an apocalyptic number.

It is an amenable number.

1293228041 is a deficient number, since it is larger than the sum of its proper divisors (211139329).

1293228041 is an equidigital number, since it uses as much as digits as its factorization.

1293228041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26392423 (or 26392416 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1293228041 is about 35961.4799612029. The cubic root of 1293228041 is about 1089.4944885412.

The spelling of 1293228041 in words is "one billion, two hundred ninety-three million, two hundred twenty-eight thousand, forty-one".

Divisors: 1 7 49 26392409 184746863 1293228041