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32131201223100 = 223527591847140407
BaseRepresentation
bin1110100111001001000001…
…10101011100100110111100
311012202201020122210022101110
413103210200311130212330
513202414200003114400
6152200511533442020
76524255056032630
oct723444065344674
9135681218708343
1032131201223100
11a268847482731
12372b2aa340310
1314c0c616aa235
147d1230a72dc0
153aac162e7e50
hex1d3920d5c9bc

32131201223100 has 288 divisors, whose sum is σ = 108107240693760. Its totient is φ = 7215835011840.

The previous prime is 32131201223083. The next prime is 32131201223137. The reversal of 32131201223100 is 132210213123.

It is a super-2 number, since 2×321312012231002 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 228773097 + ... + 228913503.

It is an arithmetic number, because the mean of its divisors is an integer number (375372363520).

Almost surely, 232131201223100 is an apocalyptic number.

32131201223100 is a gapful number since it is divisible by the number (30) 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 32131201223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54053620346880).

32131201223100 is an abundant number, since it is smaller than the sum of its proper divisors (75976039470660).

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

32131201223100 is a wasteful number, since it uses less digits than its factorization.

32131201223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142337 (or 142330 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 32131201223100 its reverse (132210213123), we get a palindrome (32263411436223).

The spelling of 32131201223100 in words is "thirty-two trillion, one hundred thirty-one billion, two hundred one million, two hundred twenty-three thousand, one hundred".