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68402282356 = 221719275319231
BaseRepresentation
bin111111101101000101…
…111111111101110100
320112120001221222022001
4333231011333331310
52110041441013411
651231254145044
74641033543502
oct775505777564
9215501858261
1068402282356
112701133a171
121130b952184
1365b14306b5
14344c757672
151ba5212dc1
hexfed17ff74

68402282356 has 48 divisors (see below), whose sum is σ = 133471618560. Its totient is φ = 30482472960.

The previous prime is 68402282269. The next prime is 68402282383. The reversal of 68402282356 is 65328220486.

It is a happy number.

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, 3547261 + ... + 3566491.

It is an arithmetic number, because the mean of its divisors is an integer number (2780658720).

Almost surely, 268402282356 is an apocalyptic number.

It is an amenable number.

68402282356 is a deficient number, since it is larger than the sum of its proper divisors (65069336204).

68402282356 is a wasteful number, since it uses less digits than its factorization.

68402282356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22024 (or 22022 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 68402282356 in words is "sixty-eight billion, four hundred two million, two hundred eighty-two thousand, three hundred fifty-six".

Divisors: 1 2 4 17 19 34 38 68 76 323 646 1292 2753 5506 11012 19231 38462 46801 52307 76924 93602 104614 187204 209228 326927 365389 653854 730778 889219 1307708 1461556 1778438 3556876 6211613 12423226 24846452 52942943 105885886 211771772 900030031 1005915917 1800060062 2011831834 3600120124 4023663668 17100570589 34201141178 68402282356