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130240145 = 57172331307
BaseRepresentation
bin1111100001101…
…00111010010001
3100002001212220002
413300310322101
5231320141040
620531255345
73141010610
oct760647221
9302055802
10130240145
1167576392
123774a555
1320ca0b99
1413423877
15b679a15
hex7c34e91

130240145 has 64 divisors (see below), whose sum is σ = 204374016. Its totient is φ = 77552640.

The previous prime is 130240093. The next prime is 130240171. The reversal of 130240145 is 541042031.

It is not a de Polignac number, because 130240145 - 210 = 130239121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 424082 + ... + 424388.

It is an arithmetic number, because the mean of its divisors is an integer number (3193344).

Almost surely, 2130240145 is an apocalyptic number.

It is an amenable number.

130240145 is a deficient number, since it is larger than the sum of its proper divisors (74133871).

130240145 is a wasteful number, since it uses less digits than its factorization.

130240145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 130240145 is about 11412.2804469571. The cubic root of 130240145 is about 506.8914397330.

Adding to 130240145 its reverse (541042031), we get a palindrome (671282176).

The spelling of 130240145 in words is "one hundred thirty million, two hundred forty thousand, one hundred forty-five".

Divisors: 1 5 7 17 23 31 35 85 115 119 155 161 217 307 391 527 595 713 805 1085 1535 1955 2149 2635 2737 3565 3689 4991 5219 7061 9517 10745 12121 13685 18445 24955 26095 35305 36533 47585 49427 60605 66619 84847 120037 161789 182665 218891 247135 333095 424235 600185 808945 840259 1094455 1132523 1532237 3721147 4201295 5662615 7661185 18605735 26048029 130240145