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68360040 = 23325727127
BaseRepresentation
bin1000001001100…
…01011101101000
311202122001100100
410010301131220
5120000010130
610441105400
71460023260
oct404613550
9152561310
1068360040
1135650a01
121aa88260
1311216238
1491167a0
156004c60
hex4131768

68360040 has 96 divisors (see below), whose sum is σ = 253918080. Its totient is φ = 15624576.

The previous prime is 68360029. The next prime is 68360051. The reversal of 68360040 is 4006386.

It is an interprime number because it is at equal distance from previous prime (68360029) and next prime (68360051).

It is a junction number, because it is equal to n+sod(n) for n = 68359986 and 68360013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11044 + ... + 16083.

It is an arithmetic number, because the mean of its divisors is an integer number (2644980).

Almost surely, 268360040 is an apocalyptic number.

68360040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68360040 is an abundant number, since it is smaller than the sum of its proper divisors (185558040).

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

68360040 is a wasteful number, since it uses less digits than its factorization.

68360040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27151 (or 27144 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 68360040 is about 8268.0130623990. The cubic root of 68360040 is about 408.8846146415.

The spelling of 68360040 in words is "sixty-eight million, three hundred sixty thousand, forty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 28 30 35 36 40 42 45 56 60 63 70 72 84 90 105 120 126 140 168 180 210 252 280 315 360 420 504 630 840 1260 2520 27127 54254 81381 108508 135635 162762 189889 217016 244143 271270 325524 379778 406905 488286 542540 569667 651048 759556 813810 949445 976572 1085080 1139334 1220715 1519112 1627620 1709001 1898890 1953144 2278668 2441430 2848335 3255240 3418002 3797780 4557336 4882860 5696670 6836004 7595560 8545005 9765720 11393340 13672008 17090010 22786680 34180020 68360040