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212843146512 = 24331143039749
BaseRepresentation
bin1100011000111001110…
…0001010110100010000
3202100101101221010102110
43012032130022310100
511441400321142022
6241440115145320
721243310615563
oct3061634126420
9670341833373
10212843146512
11822a2453277
12353008a5240
13170c0062659
14a431a9a4da
15580ac4100c
hex318e70ad10

212843146512 has 40 divisors (see below), whose sum is σ = 567581728000. Its totient is φ = 68659079040.

The previous prime is 212843146499. The next prime is 212843146519. The reversal of 212843146512 is 215641348212.

It is a super-2 number, since 2×2128431465122 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212843146519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71518387 + ... + 71521362.

It is an arithmetic number, because the mean of its divisors is an integer number (14189543200).

Almost surely, 2212843146512 is an apocalyptic number.

It is an amenable number.

212843146512 is an abundant number, since it is smaller than the sum of its proper divisors (354738581488).

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

212843146512 is a wasteful number, since it uses less digits than its factorization.

212843146512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143039791 (or 143039785 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The spelling of 212843146512 in words is "two hundred twelve billion, eight hundred forty-three million, one hundred forty-six thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 93 124 186 248 372 496 744 1488 143039749 286079498 429119247 572158996 858238494 1144317992 1716476988 2288635984 3432953976 4434232219 6865907952 8868464438 13302696657 17736928876 26605393314 35473857752 53210786628 70947715504 106421573256 212843146512