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1001304025 = 52291381109
BaseRepresentation
bin111011101011101…
…010111111011001
32120210010111220021
4323223222333121
54022313212100
6243205230441
733545641501
oct7353527731
92523114807
101001304025
11474234597
1223b402421
1312c5a58b7
1496daaa01
155cd8ca1a
hex3baeafd9

1001304025 has 12 divisors (see below), whose sum is σ = 1284432300. Its totient is φ = 773420480.

The previous prime is 1001303969. The next prime is 1001304043. The reversal of 1001304025 is 5204031001.

It can be written as a sum of positive squares in 6 ways, for example, as 58568409 + 942735616 = 7653^2 + 30704^2 .

It is a de Polignac number, because none of the positive numbers 2k-1001304025 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 689830 + ... + 691279.

It is an arithmetic number, because the mean of its divisors is an integer number (107036025).

Almost surely, 21001304025 is an apocalyptic number.

It is an amenable number.

1001304025 is a deficient number, since it is larger than the sum of its proper divisors (283128275).

1001304025 is a wasteful number, since it uses less digits than its factorization.

1001304025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381148 (or 1381143 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1001304025 is about 31643.3883299497. The cubic root of 1001304025 is about 1000.4344861944.

Adding to 1001304025 its reverse (5204031001), we get a palindrome (6205335026).

The spelling of 1001304025 in words is "one billion, one million, three hundred four thousand, twenty-five".

Divisors: 1 5 25 29 145 725 1381109 6905545 34527725 40052161 200260805 1001304025