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212130104932 = 221511481237143
BaseRepresentation
bin1100010110001111110…
…0001000011001100100
3202021112201012212021001
43011203330020121210
511433420301324212
6241241244203044
721216532066264
oct3054374103144
9667481185231
10212130104932
1181a66a06609
1235141b39484
1317008408165
14a3a50c97a4
1557b8344657
hex3163f08664

212130104932 has 24 divisors (see below), whose sum is σ = 373940042112. Its totient is φ = 105291048000.

The previous prime is 212130104917. The next prime is 212130104933. The reversal of 212130104932 is 239401031212.

It is a happy number.

It is a super-2 number, since 2×2121301049322 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212130104932.

It is not an unprimeable number, because it can be changed into a prime (212130104933) by changing a digit.

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, 775953 + ... + 1013095.

It is an arithmetic number, because the mean of its divisors is an integer number (15580835088).

Almost surely, 2212130104932 is an apocalyptic number.

It is an amenable number.

212130104932 is a deficient number, since it is larger than the sum of its proper divisors (161809937180).

212130104932 is a wasteful number, since it uses less digits than its factorization.

212130104932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238779 (or 238777 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 212130104932 in words is "two hundred twelve billion, one hundred thirty million, one hundred four thousand, nine hundred thirty-two".

Divisors: 1 2 4 151 302 604 1481 2962 5924 223631 237143 447262 474286 894524 948572 35808593 71617186 143234372 351208783 702417566 1404835132 53032526233 106065052466 212130104932