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68354033852 = 221361109197699
BaseRepresentation
bin111111101010001101…
…111100100010111100
320112102201011200210102
4333222031330202330
52104442113040402
651222412100232
74636606462346
oct775215744274
9215381150712
1068354033852
1126a97085375
12112b7764678
1365a44395a0
143446198296
151ba0d82102
hexfea37c8bc

68354033852 has 48 divisors (see below), whose sum is σ = 132134772000. Its totient is φ = 30745992960.

The previous prime is 68354033843. The next prime is 68354033897. The reversal of 68354033852 is 25833045386.

It is a junction number, because it is equal to n+sod(n) for n = 68354033797 and 68354033806.

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, 246899 + ... + 444597.

It is an arithmetic number, because the mean of its divisors is an integer number (2752807750).

Almost surely, 268354033852 is an apocalyptic number.

It is an amenable number.

68354033852 is a deficient number, since it is larger than the sum of its proper divisors (63780738148).

68354033852 is a wasteful number, since it uses less digits than its factorization.

68354033852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197886 (or 197884 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 68354033852 in words is "sixty-eight billion, three hundred fifty-four million, thirty-three thousand, eight hundred fifty-two".

Divisors: 1 2 4 13 26 52 61 109 122 218 244 436 793 1417 1586 2834 3172 5668 6649 13298 26596 86437 172874 197699 345748 395398 790796 2570087 5140174 10280348 12059639 21549191 24119278 43098382 48238556 86196764 156775307 280139483 313550614 560278966 627101228 1120557932 1314500651 2629001302 5258002604 17088508463 34177016926 68354033852