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20310033130 = 252970034597
BaseRepresentation
bin10010111010100100…
…101000001011101010
31221102102220120202021
4102322210220023222
5313043332030010
613155202255054
71316205301402
oct227244501352
957372816667
1020310033130
118682536552
123b2995748a
131bb89a93aa
14da954b802
157dd0ac8da
hex4ba9282ea

20310033130 has 16 divisors (see below), whose sum is σ = 37818682920. Its totient is φ = 7843874752.

The previous prime is 20310033097. The next prime is 20310033157. The reversal of 20310033130 is 3133001302.

It can be written as a sum of positive squares in 4 ways, for example, as 17229450121 + 3080583009 = 131261^2 + 55503^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35017009 + ... + 35017588.

Almost surely, 220310033130 is an apocalyptic number.

20310033130 is a deficient number, since it is larger than the sum of its proper divisors (17508649790).

20310033130 is a wasteful number, since it uses less digits than its factorization.

20310033130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70034633.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20310033130 its reverse (3133001302), we get a palindrome (23443034432).

The spelling of 20310033130 in words is "twenty billion, three hundred ten million, thirty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 70034597 140069194 350172985 700345970 2031003313 4062006626 10155016565 20310033130