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212241964040 = 23523230697787
BaseRepresentation
bin1100010110101010011…
…0110101110000001000
3202021211111200220002222
43011222212311300020
511434132420322130
6241300321513212
721222360633161
oct3055246656010
9667744626088
10212241964040
1182014067a57
12351734a2808
1317025641792
14a3b5cc6768
1557c308cce5
hex316a9b5c08

212241964040 has 32 divisors (see below), whose sum is σ = 498307222080. Its totient is φ = 81205620672.

The previous prime is 212241964031. The next prime is 212241964069. The reversal of 212241964040 is 40469142212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115347974 + ... + 115349813.

It is an arithmetic number, because the mean of its divisors is an integer number (15572100690).

Almost surely, 2212241964040 is an apocalyptic number.

212241964040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212241964040 is an abundant number, since it is smaller than the sum of its proper divisors (286065258040).

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

212241964040 is a wasteful number, since it uses less digits than its factorization.

212241964040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230697821 (or 230697817 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 212241964040 in words is "two hundred twelve billion, two hundred forty-one million, nine hundred sixty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 230697787 461395574 922791148 1153488935 1845582296 2306977870 4613955740 5306049101 9227911480 10612098202 21224196404 26530245505 42448392808 53060491010 106120982020 212241964040