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130019144 = 2316252393
BaseRepresentation
bin1111011111111…
…10111101001000
3100001122122201212
413233332331020
5231241103034
620522432252
73136100363
oct757767510
9301578655
10130019144
1167435342
1237662688
1320c24408
14133a70da
15b6342ce
hex7bfef48

130019144 has 8 divisors (see below), whose sum is σ = 243785910. Its totient is φ = 65009568.

The previous prime is 130019137. The next prime is 130019167. The reversal of 130019144 is 441910031.

It can be written as a sum of positive squares in only one way, i.e., 124590244 + 5428900 = 11162^2 + 2330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8126189 + ... + 8126204.

Almost surely, 2130019144 is an apocalyptic number.

It is an amenable number.

130019144 is a deficient number, since it is larger than the sum of its proper divisors (113766766).

130019144 is a wasteful number, since it uses less digits than its factorization.

130019144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16252399 (or 16252395 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 130019144 is about 11402.5937400225. The cubic root of 130019144 is about 506.6045672583.

Adding to 130019144 its reverse (441910031), we get a palindrome (571929175).

The spelling of 130019144 in words is "one hundred thirty million, nineteen thousand, one hundred forty-four".

Divisors: 1 2 4 8 16252393 32504786 65009572 130019144