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130144245 = 35721116097
BaseRepresentation
bin1111100000111…
…01011111110101
3100001220000100020
413300131133311
5231304103440
620525235353
73140131200
oct760353765
9301800306
10130144245
1167510330
1237702b59
1320c6933a
14133da937
15b65b3d0
hex7c1d7f5

130144245 has 48 divisors (see below), whose sum is σ = 264264768. Its totient is φ = 54082560.

The previous prime is 130144241. The next prime is 130144271. The reversal of 130144245 is 542441031.

It is not a de Polignac number, because 130144245 - 22 = 130144241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130144241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37 + ... + 16133.

It is an arithmetic number, because the mean of its divisors is an integer number (5505516).

Almost surely, 2130144245 is an apocalyptic number.

130144245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130144245 is an abundant number, since it is smaller than the sum of its proper divisors (134120523).

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

130144245 is a wasteful number, since it uses less digits than its factorization.

130144245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16130 (or 16123 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 130144245 is about 11408.0780589896. The cubic root of 130144245 is about 506.7669957038.

Adding to 130144245 its reverse (542441031), we get a palindrome (672585276).

The spelling of 130144245 in words is "one hundred thirty million, one hundred forty-four thousand, two hundred forty-five".

Divisors: 1 3 5 7 11 15 21 33 35 49 55 77 105 147 165 231 245 385 539 735 1155 1617 2695 8085 16097 48291 80485 112679 177067 241455 338037 531201 563395 788753 885335 1239469 1690185 2366259 2656005 3718407 3943765 6197345 8676283 11831295 18592035 26028849 43381415 130144245