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130302331 = 1731972549
BaseRepresentation
bin1111100010001…
…00000101111011
3100002012001012021
413301010011323
5231324133311
620532455311
73141360115
oct761040573
9302161167
10130302331
1167609085
123777a537
1320cc3293
141343c3b5
15b68d171
hex7c4417b

130302331 has 16 divisors (see below), whose sum is σ = 143942400. Its totient is φ = 117411840.

The previous prime is 130302329. The next prime is 130302343. The reversal of 130302331 is 133203031.

It is a cyclic number.

It is not a de Polignac number, because 130302331 - 21 = 130302329 is a prime.

It is a super-2 number, since 2×1303023312 = 33957394928067122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100302331) 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, 49845 + ... + 52393.

It is an arithmetic number, because the mean of its divisors is an integer number (8996400).

Almost surely, 2130302331 is an apocalyptic number.

130302331 is a deficient number, since it is larger than the sum of its proper divisors (13640069).

130302331 is a wasteful number, since it uses less digits than its factorization.

130302331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 130302331 is about 11415.0046430126. The cubic root of 130302331 is about 506.9721023570.

Adding to 130302331 its reverse (133203031), we get a palindrome (263505362).

The spelling of 130302331 in words is "one hundred thirty million, three hundred two thousand, three hundred thirty-one".

Divisors: 1 17 31 97 527 1649 2549 3007 43333 51119 79019 247253 1343323 4203301 7664843 130302331