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1033402013 = 7297217421
BaseRepresentation
bin111101100110000…
…111011010011101
32200000112021001122
4331212013122131
54104022331023
6250313220325
734415525600
oct7546073235
92600467048
101033402013
11490368256
1224a1016a5
131361337a7
149b364337
1560acd2c8
hex3d98769d

1033402013 has 12 divisors (see below), whose sum is σ = 1214519292. Its totient is φ = 876637440.

The previous prime is 1033402009. The next prime is 1033402031. The reversal of 1033402013 is 3102043301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 733488889 + 299913124 = 27083^2 + 17318^2 .

It is not a de Polignac number, because 1033402013 - 22 = 1033402009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1033401982 and 1033402000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1033402093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103958 + ... + 113463.

It is an arithmetic number, because the mean of its divisors is an integer number (101209941).

Almost surely, 21033402013 is an apocalyptic number.

It is an amenable number.

1033402013 is a deficient number, since it is larger than the sum of its proper divisors (181117279).

1033402013 is an equidigital number, since it uses as much as digits as its factorization.

1033402013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217532 (or 217525 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1033402013 is about 32146.5707813446. The cubic root of 1033402013 is about 1011.0122886762.

Adding to 1033402013 its reverse (3102043301), we get a palindrome (4135445314).

The spelling of 1033402013 in words is "one billion, thirty-three million, four hundred two thousand, thirteen".

Divisors: 1 7 49 97 679 4753 217421 1521947 10653629 21089837 147628859 1033402013