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212755008894 = 23233494417487
BaseRepresentation
bin1100011000100100101…
…1111100110101111110
3202100011021002021100020
43012021023330311332
511441210240241034
6241423250113010
721241160510601
oct3061113746576
9670137067306
10212755008894
118225772416a
123529727b766
13170a7a1330c
14a4240b6338
155803131249
hex31892fcd7e

212755008894 has 32 divisors (see below), whose sum is σ = 445282790400. Its totient is φ = 67640545632.

The previous prime is 212755008889. The next prime is 212755008911. The reversal of 212755008894 is 498800557212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2160582 + ... + 2256905.

It is an arithmetic number, because the mean of its divisors is an integer number (13915087200).

Almost surely, 2212755008894 is an apocalyptic number.

212755008894 is an abundant number, since it is smaller than the sum of its proper divisors (232527781506).

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

212755008894 is a wasteful number, since it uses less digits than its factorization.

212755008894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417864.

The product of its (nonzero) digits is 1612800, while the sum is 51.

The spelling of 212755008894 in words is "two hundred twelve billion, seven hundred fifty-five million, eight thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 23 46 69 138 349 698 1047 2094 8027 16054 24081 48162 4417487 8834974 13252461 26504922 101602201 203204402 304806603 609613206 1541702963 3083405926 4625108889 9250217778 35459168149 70918336298 106377504447 212755008894