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130511000 = 2353196869
BaseRepresentation
bin1111100011101…
…11000010011000
3100002120122102202
413301313002120
5231402323000
620541145332
73143216354
oct761670230
9302518382
10130511000
1167740934
123785b248
1321067259
1413494464
15b6cedd5
hex7c77098

130511000 has 64 divisors (see below), whose sum is σ = 321516000. Its totient is φ = 49449600.

The previous prime is 130510997. The next prime is 130511011. The reversal of 130511000 is 115031.

It is a super-2 number, since 2×1305110002 = 34066242242000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15566 + ... + 22434.

Almost surely, 2130511000 is an apocalyptic number.

130511000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130511000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160758000).

130511000 is an abundant number, since it is smaller than the sum of its proper divisors (191005000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130511000 is a wasteful number, since it uses less digits than its factorization.

130511000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6909 (or 6895 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 11.

The square root of 130511000 is about 11424.1411055711. The cubic root of 130511000 is about 507.2425834243.

Adding to 130511000 its reverse (115031), we get a palindrome (130626031).

The spelling of 130511000 in words is "one hundred thirty million, five hundred eleven thousand".

Divisors: 1 2 4 5 8 10 19 20 25 38 40 50 76 95 100 125 152 190 200 250 380 475 500 760 950 1000 1900 2375 3800 4750 6869 9500 13738 19000 27476 34345 54952 68690 130511 137380 171725 261022 274760 343450 522044 652555 686900 858625 1044088 1305110 1373800 1717250 2610220 3262775 3434500 5220440 6525550 6869000 13051100 16313875 26102200 32627750 65255500 130511000