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68843549632 = 2611137522241
BaseRepresentation
bin100000000011101100…
…1010011001111000000
320120200211021200012111
41000013121103033000
52111442422042012
651343140105104
74655002342144
oct1000731231700
9216624250174
1068843549632
1127218430870
1211413695194
1366519905b0
1434911c1224
151bcdd28ba7
hex10076533c0

68843549632 has 56 divisors (see below), whose sum is σ = 160494555312. Its totient is φ = 28885401600.

The previous prime is 68843549629. The next prime is 68843549651. The reversal of 68843549632 is 23694534886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3751969 + ... + 3770272.

It is an arithmetic number, because the mean of its divisors is an integer number (2865974202).

Almost surely, 268843549632 is an apocalyptic number.

It is an amenable number.

68843549632 is an abundant number, since it is smaller than the sum of its proper divisors (91651005680).

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

68843549632 is a wasteful number, since it uses less digits than its factorization.

68843549632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7522277 (or 7522267 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 58.

It can be divided in two parts, 6884354 and 9632, that added together give a palindrome (6893986).

The spelling of 68843549632 in words is "sixty-eight billion, eight hundred forty-three million, five hundred forty-nine thousand, six hundred thirty-two".

Divisors: 1 2 4 8 11 13 16 22 26 32 44 52 64 88 104 143 176 208 286 352 416 572 704 832 1144 2288 4576 9152 7522241 15044482 30088964 60177928 82744651 97789133 120355856 165489302 195578266 240711712 330978604 391156532 481423424 661957208 782313064 1075680463 1323914416 1564626128 2151360926 2647828832 3129252256 4302721852 5295657664 6258504512 8605443704 17210887408 34421774816 68843549632