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130523016 = 23313418343
BaseRepresentation
bin1111100011110…
…01111110001000
3100002121020220210
413301321332020
5231403214031
620541321120
73143266401
oct761717610
9302536823
10130523016
1167749968
12378661a0
132106c870
14134989a8
15b6d3746
hex7c79f88

130523016 has 32 divisors (see below), whose sum is σ = 351408960. Its totient is φ = 40160832.

The previous prime is 130523011. The next prime is 130523053. The reversal of 130523016 is 610325031.

It is a junction number, because it is equal to n+sod(n) for n = 130522983 and 130523001.

It is not an unprimeable number, because it can be changed into a prime (130523011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208860 + ... + 209483.

It is an arithmetic number, because the mean of its divisors is an integer number (10981530).

Almost surely, 2130523016 is an apocalyptic number.

It is an amenable number.

130523016 is an abundant number, since it is smaller than the sum of its proper divisors (220885944).

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

130523016 is a wasteful number, since it uses less digits than its factorization.

130523016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418365 (or 418361 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 130523016 is about 11424.6669973352. Note that the first 3 decimals coincide. The cubic root of 130523016 is about 507.2581500300.

Adding to 130523016 its reverse (610325031), we get a palindrome (740848047).

The spelling of 130523016 in words is "one hundred thirty million, five hundred twenty-three thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 418343 836686 1255029 1673372 2510058 3346744 5020116 5438459 10040232 10876918 16315377 21753836 32630754 43507672 65261508 130523016