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521032202130000 = 243541112591254079
BaseRepresentation
bin111011001111000000100001…
…1010100110001001001010000
32112022211012012000110021101210
41312132001003110301021100
51021243042422221130000
65044050520025500120
7214514222454354501
oct16636010324611120
92468735160407353
10521032202130000
11141020574903680
124a52b646341640
1319496183604342
1492941437dcba8
15403839b112350
hex1d9e043531250

521032202130000 has 400 divisors, whose sum is σ = 1836325867622400. Its totient is φ = 126210409920000.

The previous prime is 521032202129993. The next prime is 521032202130029. The reversal of 521032202130000 is 31202230125.

It is a tau number, because it is divible by the number of its divisors (400).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 414842961 + ... + 416097039.

It is an arithmetic number, because the mean of its divisors is an integer number (4590814669056).

Almost surely, 2521032202130000 is an apocalyptic number.

521032202130000 is a gapful number since it is divisible by the number (50) 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 521032202130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (918162933811200).

521032202130000 is an abundant number, since it is smaller than the sum of its proper divisors (1315293665492400).

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

521032202130000 is a wasteful number, since it uses less digits than its factorization.

521032202130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255380 (or 1255359 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 521032202130000 its reverse (31202230125), we get a palindrome (521063404360125).

The spelling of 521032202130000 in words is "five hundred twenty-one trillion, thirty-two billion, two hundred two million, one hundred thirty thousand".