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64115130 = 2353171971
BaseRepresentation
bin1111010010010…
…1000110111010
311110122101102110
43310211012322
5112403141010
610210113150
71405653402
oct364450672
9143571373
1064115130
1133211712
121957b7b6
131038b061
14872d802
155967120
hex3d251ba

64115130 has 64 divisors (see below), whose sum is σ = 161243136. Its totient is φ = 16296000.

The previous prime is 64115119. The next prime is 64115153. The reversal of 64115130 is 3151146.

It is a super-2 number, since 2×641151302 = 8221499789833800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64115097 and 64115106.

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, 65545 + ... + 66515.

It is an arithmetic number, because the mean of its divisors is an integer number (2519424).

Almost surely, 264115130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64115130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80621568).

64115130 is an abundant number, since it is smaller than the sum of its proper divisors (97128006).

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

64115130 is a wasteful number, since it uses less digits than its factorization.

64115130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 64115130 is about 8007.1923918437. The cubic root of 64115130 is about 400.2397104852.

Adding to 64115130 its reverse (3151146), we get a palindrome (67266276).

The spelling of 64115130 in words is "sixty-four million, one hundred fifteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 71 93 142 155 186 213 310 355 426 465 710 930 971 1065 1942 2130 2201 2913 4402 4855 5826 6603 9710 11005 13206 14565 22010 29130 30101 33015 60202 66030 68941 90303 137882 150505 180606 206823 301010 344705 413646 451515 689410 903030 1034115 2068230 2137171 4274342 6411513 10685855 12823026 21371710 32057565 64115130