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130145553 = 3223896053
BaseRepresentation
bin1111100000111…
…01110100010001
3100001220002010200
413300131310101
5231304124203
620525245413
73140135046
oct760356421
9301802120
10130145553
116751130a
1237703869
1320c69b05
14133db1cd
15b65b9a3
hex7c1dd11

130145553 has 12 divisors (see below), whose sum is σ = 188097780. Its totient is φ = 86713056.

The previous prime is 130145551. The next prime is 130145567. The reversal of 130145553 is 355541031.

It can be written as a sum of positive squares in 2 ways, for example, as 18378369 + 111767184 = 4287^2 + 10572^2 .

It is not a de Polignac number, because 130145553 - 21 = 130145551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130145551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18475 + ... + 24527.

It is an arithmetic number, because the mean of its divisors is an integer number (15674815).

Almost surely, 2130145553 is an apocalyptic number.

It is an amenable number.

130145553 is a deficient number, since it is larger than the sum of its proper divisors (57952227).

130145553 is a wasteful number, since it uses less digits than its factorization.

130145553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448 (or 8445 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 130145553 is about 11408.1353866440. The cubic root of 130145553 is about 506.7686934329.

Adding to 130145553 its reverse (355541031), we get a palindrome (485686584).

The spelling of 130145553 in words is "one hundred thirty million, one hundred forty-five thousand, five hundred fifty-three".

Divisors: 1 3 9 2389 6053 7167 18159 21501 54477 14460617 43381851 130145553