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68104186608 = 24317458318211
BaseRepresentation
bin111111011011010100…
…110110101011110000
320111210022001010210210
4333123110312223300
52103434132432413
651141525024120
74630454014623
oct773324665360
9214708033723
1068104186608
1126979046447
1211247b55040
13656474b593
143420d1bdba
151b88e7d3c3
hexfdb536af0

68104186608 has 80 divisors (see below), whose sum is σ = 186335859456. Its totient is φ = 21360184320.

The previous prime is 68104186543. The next prime is 68104186613. The reversal of 68104186608 is 80668140186.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 3730623 + ... + 3748833.

Almost surely, 268104186608 is an apocalyptic number.

68104186608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

68104186608 is an abundant number, since it is smaller than the sum of its proper divisors (118231672848).

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

68104186608 is a wasteful number, since it uses less digits than its factorization.

68104186608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22822 (or 22816 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The spelling of 68104186608 in words is "sixty-eight billion, one hundred four million, one hundred eighty-six thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 4583 9166 13749 18211 18332 27498 36422 36664 54633 54996 72844 73328 77911 109266 109992 145688 155822 218532 219984 233733 291376 309587 311644 437064 467466 619174 623288 874128 928761 934932 1238348 1246576 1857522 1869864 2476696 3715044 3739728 4953392 7430088 14860176 83461013 166922026 250383039 333844052 500766078 667688104 1001532156 1335376208 1418837221 2003064312 2837674442 4006128624 4256511663 5675348884 8513023326 11350697768 17026046652 22701395536 34052093304 68104186608