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65307130 = 2572953607
BaseRepresentation
bin1111100100100…
…0000111111010
311112212221112121
43321020013322
5113204312010
610251431454
71422046540
oct371100772
9145787477
1065307130
1133956239
1219a5558a
13106b7795
14895dd90
155b003da
hex3e481fa

65307130 has 64 divisors (see below), whose sum is σ = 141834240. Its totient is φ = 21176064.

The previous prime is 65307127. The next prime is 65307157. The reversal of 65307130 is 3170356.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 65307095 and 65307104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107287 + ... + 107893.

It is an arithmetic number, because the mean of its divisors is an integer number (2216160).

Almost surely, 265307130 is an apocalyptic number.

65307130 is an abundant number, since it is smaller than the sum of its proper divisors (76527110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65307130 is a wasteful number, since it uses less digits than its factorization.

65307130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 65307130 is about 8081.2826952161. The cubic root of 65307130 is about 402.7048556617.

Adding to 65307130 its reverse (3170356), we get a palindrome (68477486).

The spelling of 65307130 in words is "sixty-five million, three hundred seven thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 29 35 53 58 70 106 145 203 265 290 371 406 530 607 742 1015 1214 1537 1855 2030 3035 3074 3710 4249 6070 7685 8498 10759 15370 17603 21245 21518 32171 35206 42490 53795 64342 88015 107590 123221 160855 176030 225197 246442 321710 450394 616105 932959 1125985 1232210 1865918 2251970 4664795 6530713 9329590 13061426 32653565 65307130