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130144443 = 31113303367
BaseRepresentation
bin1111100000111…
…01100010111011
3100001220000121120
413300131202323
5231304110233
620525240323
73140131602
oct760354273
9301800546
10130144443
11675104a0
12377030a3
1320c69460
14133daa39
15b65b4b3
hex7c1d8bb

130144443 has 16 divisors (see below), whose sum is σ = 203863296. Its totient is φ = 72807840.

The previous prime is 130144423. The next prime is 130144451. The reversal of 130144443 is 344441031.

It is not a de Polignac number, because 130144443 - 26 = 130144379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130144403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151255 + ... + 152112.

It is an arithmetic number, because the mean of its divisors is an integer number (12741456).

Almost surely, 2130144443 is an apocalyptic number.

130144443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

130144443 is a deficient number, since it is larger than the sum of its proper divisors (73718853).

130144443 is a wasteful number, since it uses less digits than its factorization.

130144443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303394.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 130144443 is about 11408.0867370475. The cubic root of 130144443 is about 506.7672527003.

Adding to 130144443 its reverse (344441031), we get a palindrome (474585474).

The spelling of 130144443 in words is "one hundred thirty million, one hundred forty-four thousand, four hundred forty-three".

Divisors: 1 3 11 13 33 39 143 429 303367 910101 3337037 3943771 10011111 11831313 43381481 130144443