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212202312133 = 7172778537547
BaseRepresentation
bin1100010110100000111…
…1100101000111000101
3202021201202002100220211
43011220033211013011
511434042242442013
6241252343555421
721221366615020
oct3055017450705
9667652070824
10212202312133
1181aa3744989
123516215bb71
131701a36a506
14a3b09241b7
1557be85923d
hex31683e51c5

212202312133 has 32 divisors (see below), whose sum is σ = 258045951744. Its totient is φ = 170347871232.

The previous prime is 212202312107. The next prime is 212202312139. The reversal of 212202312133 is 331213202212.

It is not a de Polignac number, because 212202312133 - 221 = 212200214981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202312139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28113666 + ... + 28121212.

It is an arithmetic number, because the mean of its divisors is an integer number (8063935992).

Almost surely, 2212202312133 is an apocalyptic number.

It is an amenable number.

212202312133 is a deficient number, since it is larger than the sum of its proper divisors (45843639611).

212202312133 is a wasteful number, since it uses less digits than its factorization.

212202312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8701.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212202312133 its reverse (331213202212), we get a palindrome (543415514345).

The spelling of 212202312133 in words is "two hundred twelve billion, two hundred two million, three hundred twelve thousand, one hundred thirty-three".

Divisors: 1 7 17 119 277 853 1939 4709 5971 7547 14501 32963 52829 101507 128299 236281 898093 1653967 2090519 4016777 6437591 14633633 28117439 35538823 45063137 109439047 248771761 766073329 1783212707 12482488949 30314616019 212202312133