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1021230041 = 13292708833
BaseRepresentation
bin111100110111101…
…011101111011001
32122011121212020212
4330313223233121
54042413330131
6245200300505
734210212026
oct7467535731
92564555225
101021230041
11484504277
12246011735
13133761440
14998b654d
155e9c6a2b
hex3cdebbd9

1021230041 has 8 divisors (see below), whose sum is σ = 1137710280. Its totient is φ = 910167552.

The previous prime is 1021230037. The next prime is 1021230043. The reversal of 1021230041 is 1400321201.

It can be written as a sum of positive squares in 4 ways, for example, as 11833600 + 1009396441 = 3440^2 + 31771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1021230041 - 22 = 1021230037 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 = 1021229998 and 1021230025.

It is not an unprimeable number, because it can be changed into a prime (1021230043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354040 + ... + 1354793.

It is an arithmetic number, because the mean of its divisors is an integer number (142213785).

Almost surely, 21021230041 is an apocalyptic number.

It is an amenable number.

1021230041 is a deficient number, since it is larger than the sum of its proper divisors (116480239).

1021230041 is a wasteful number, since it uses less digits than its factorization.

1021230041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708875.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1021230041 is about 31956.6900820470. The cubic root of 1021230041 is about 1007.0271833569.

Adding to 1021230041 its reverse (1400321201), we get a palindrome (2421551242).

The spelling of 1021230041 in words is "one billion, twenty-one million, two hundred thirty thousand, forty-one".

Divisors: 1 13 29 377 2708833 35214829 78556157 1021230041