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32130202231 = 95569336199
BaseRepresentation
bin11101111011000110…
…111111101001110111
310001221012122101111001
4131323012333221313
51011300312432411
622432125424131
72215134132661
oct357306775167
9101835571431
1032130202231
1112698730546
12628840b047
1330507c8caa
1417ab317531
15c80b59dc1
hex77b1bfa77

32130202231 has 4 divisors (see below), whose sum is σ = 32130634000. Its totient is φ = 32129770464.

The previous prime is 32130202201. The next prime is 32130202271. The reversal of 32130202231 is 13220203123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13220203123 = 84827155849.

It is a cyclic number.

It is not a de Polignac number, because 32130202231 - 211 = 32130200183 is a prime.

It is a super-2 number, since 2×321302022312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32130202199 and 32130202208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32130202201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72531 + ... + 263668.

It is an arithmetic number, because the mean of its divisors is an integer number (8032658500).

Almost surely, 232130202231 is an apocalyptic number.

32130202231 is a deficient number, since it is larger than the sum of its proper divisors (431769).

32130202231 is an equidigital number, since it uses as much as digits as its factorization.

32130202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431768.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 32130202231 its reverse (13220203123), we get a palindrome (45350405354).

The spelling of 32130202231 in words is "thirty-two billion, one hundred thirty million, two hundred two thousand, two hundred thirty-one".

Divisors: 1 95569 336199 32130202231