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43115130 = 23251632939
BaseRepresentation
bin1010010001111…
…0001001111010
310000010110211200
42210132021322
542014141010
64140035030
71032321042
oct244361172
9100113750
1043115130
1122379043
1212532a76
138c17716
145a24722
153bb9cc0
hex291e27a

43115130 has 48 divisors (see below), whose sum is σ = 112825440. Its totient is φ = 11422944.

The previous prime is 43115117. The next prime is 43115131. The reversal of 43115130 is 3151134.

43115130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (43115131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13201 + ... + 16139.

It is an arithmetic number, because the mean of its divisors is an integer number (2350530).

Almost surely, 243115130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43115130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56412720).

43115130 is an abundant number, since it is smaller than the sum of its proper divisors (69710310).

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

43115130 is a wasteful number, since it uses less digits than its factorization.

43115130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115 (or 3112 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 43115130 is about 6566.2112363219. The cubic root of 43115130 is about 350.6521988871.

Adding to 43115130 its reverse (3151134), we get a palindrome (46266264).

The spelling of 43115130 in words is "forty-three million, one hundred fifteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 163 326 489 815 978 1467 1630 2445 2934 2939 4890 5878 7335 8817 14670 14695 17634 26451 29390 44085 52902 88170 132255 264510 479057 958114 1437171 2395285 2874342 4311513 4790570 7185855 8623026 14371710 21557565 43115130