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130555040520 = 23353121995689
BaseRepresentation
bin111100110010110101…
…1111101001100001000
3110110222121100020002010
41321211223331030020
54114334042244040
6135550503335520
712301163351202
oct1714553751410
9413877306063
10130555040520
1150405a0a303
12213767515a0
13c407b8b388
1464670ab772
1535e194ee80
hex1e65afd308

130555040520 has 192 divisors, whose sum is σ = 406812240000. Its totient is φ = 33516426240.

The previous prime is 130555040501. The next prime is 130555040527. The reversal of 130555040520 is 25040555031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (130555040527) 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, 22945836 + ... + 22951524.

It is an arithmetic number, because the mean of its divisors is an integer number (2118813750).

Almost surely, 2130555040520 is an apocalyptic number.

130555040520 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 130555040520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203406120000).

130555040520 is an abundant number, since it is smaller than the sum of its proper divisors (276257199480).

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

130555040520 is a wasteful number, since it uses less digits than its factorization.

130555040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5964 (or 5929 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 130555040520 its reverse (25040555031), we get a palindrome (155595595551).

The spelling of 130555040520 in words is "one hundred thirty billion, five hundred fifty-five million, forty thousand, five hundred twenty".