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1005131025 = 3452716991
BaseRepresentation
bin111011111010010…
…001010100010001
32121001022221120000
4323322101110101
54024303143100
6243423240213
733623321103
oct7372212421
92531287500
101005131025
114764088a8
12240749069
131303157b2
14976c5573
155d396900
hex3be91511

1005131025 has 60 divisors (see below), whose sum is σ = 1888343424. Its totient is φ = 528444000.

The previous prime is 1005131009. The next prime is 1005131041. The reversal of 1005131025 is 5201315001.

1005131025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1005131009) and next prime (1005131041).

It is not a de Polignac number, because 1005131025 - 24 = 1005131009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1005130989 and 1005131007.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 140280 + ... + 147270.

Almost surely, 21005131025 is an apocalyptic number.

1005131025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1005131025 is a deficient number, since it is larger than the sum of its proper divisors (883212399).

1005131025 is an equidigital number, since it uses as much as digits as its factorization.

1005131025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084 (or 7070 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 1005131025 is about 31703.8014282199. The cubic root of 1005131025 is about 1001.7074247083.

Adding to 1005131025 its reverse (5201315001), we get a palindrome (6206446026).

The spelling of 1005131025 in words is "one billion, five million, one hundred thirty-one thousand, twenty-five".

Divisors: 1 3 5 9 15 25 27 45 71 75 81 135 213 225 355 405 639 675 1065 1775 1917 2025 3195 5325 5751 6991 9585 15975 20973 28755 34955 47925 62919 104865 143775 174775 188757 314595 496361 524325 566271 943785 1489083 1572975 2481805 2831355 4467249 4718925 7445415 12409025 13401747 14156775 22336245 37227075 40205241 67008735 111681225 201026205 335043675 1005131025