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130219749 = 321119107647
BaseRepresentation
bin1111100001011…
…11111011100101
3100002000211220200
413300233323211
5231314012444
620531021113
73140564262
oct760577345
9302024820
10130219749
1167562030
123773a799
1320c9480a
141341a269
15b673969
hex7c2fee5

130219749 has 48 divisors (see below), whose sum is σ = 218350080. Its totient is φ = 73954080.

The previous prime is 130219723. The next prime is 130219759. The reversal of 130219749 is 947912031.

It is not a de Polignac number, because 130219749 - 29 = 130219237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130219709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200944 + ... + 201590.

It is an arithmetic number, because the mean of its divisors is an integer number (4548960).

Almost surely, 2130219749 is an apocalyptic number.

130219749 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

130219749 is a deficient number, since it is larger than the sum of its proper divisors (88130331).

130219749 is a wasteful number, since it uses less digits than its factorization.

130219749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 130219749 is about 11411.3868131792. The cubic root of 130219749 is about 506.8649781083.

The spelling of 130219749 in words is "one hundred thirty million, two hundred nineteen thousand, seven hundred forty-nine".

Divisors: 1 3 9 11 19 33 57 99 107 171 209 321 627 647 963 1177 1881 1941 2033 3531 5823 6099 7117 10593 12293 18297 21351 22363 36879 64053 67089 69229 110637 135223 201267 207687 405669 623061 761519 1217007 1315351 2284557 3946053 6853671 11838159 14468861 43406583 130219749