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130523000 = 2353130523
BaseRepresentation
bin1111100011110…
…01111101111000
3100002121020220012
413301321331320
5231403214000
620541321052
73143266346
oct761717570
9302536805
10130523000
1167749953
1237866188
132106c85a
1413498996
15b6d3735
hex7c79f78

130523000 has 32 divisors (see below), whose sum is σ = 305426160. Its totient is φ = 52208800.

The previous prime is 130522993. The next prime is 130523011. The reversal of 130523000 is 325031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64262 + ... + 66261.

Almost surely, 2130523000 is an apocalyptic number.

130523000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130523000 is an abundant number, since it is smaller than the sum of its proper divisors (174903160).

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

130523000 is a wasteful number, since it uses less digits than its factorization.

130523000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130544 (or 130530 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 130523000 is about 11424.6662970959. Note that the first 3 decimals coincide. The cubic root of 130523000 is about 507.2581293028.

Adding to 130523000 its reverse (325031), we get a palindrome (130848031).

The spelling of 130523000 in words is "one hundred thirty million, five hundred twenty-three thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 130523 261046 522092 652615 1044184 1305230 2610460 3263075 5220920 6526150 13052300 16315375 26104600 32630750 65261500 130523000