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130040142500 = 225452016057
BaseRepresentation
bin111100100011011111…
…1110001101010100100
3110102122201110200210002
41321012333301222210
54112310234030000
6135423431320432
712252341654612
oct1710677615244
9412581420702
10130040142500
11501712a7854
1221252220118
13c3552bb1a8
1464189586b2
1535b16428d5
hex1e46ff1aa4

130040142500 has 30 divisors (see below), whose sum is σ = 284371789086. Its totient is φ = 52016056000.

The previous prime is 130040142481. The next prime is 130040142503. The reversal of 130040142500 is 5241040031.

It can be written as a sum of positive squares in 5 ways, for example, as 90794947684 + 39245194816 = 301322^2 + 198104^2 .

It is a super-2 number, since 2×1300401425002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (130040142503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26005529 + ... + 26010528.

Almost surely, 2130040142500 is an apocalyptic number.

130040142500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130040142500 is an abundant number, since it is smaller than the sum of its proper divisors (154331646586).

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

130040142500 is an equidigital number, since it uses as much as digits as its factorization.

130040142500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52016081 (or 52016064 counting only the distinct ones).

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

Adding to 130040142500 its reverse (5241040031), we get a palindrome (135281182531).

The spelling of 130040142500 in words is "one hundred thirty billion, forty million, one hundred forty-two thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 52016057 104032114 208064228 260080285 520160570 1040321140 1300401425 2600802850 5201605700 6502007125 13004014250 26008028500 32510035625 65020071250 130040142500