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68184960 = 2735172089
BaseRepresentation
bin1000001000001…
…10101110000000
311202022011011220
410010012232000
5114423404320
610433235040
71455363654
oct404065600
9152264156
1068184960
1135541408
121aa02a80
131118463c
1490aca64
155ebce40
hex4106b80

68184960 has 128 divisors (see below), whose sum is σ = 230234400. Its totient is φ = 17104896.

The previous prime is 68184959. The next prime is 68184967. The reversal of 68184960 is 6948186.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68184967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31596 + ... + 33684.

Almost surely, 268184960 is an apocalyptic number.

68184960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68184960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115117200).

68184960 is an abundant number, since it is smaller than the sum of its proper divisors (162049440).

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

68184960 is a wasteful number, since it uses less digits than its factorization.

68184960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 68184960 is about 8257.4184827947. The cubic root of 68184960 is about 408.5352452302.

The spelling of 68184960 in words is "sixty-eight million, one hundred eighty-four thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 32 34 40 48 51 60 64 68 80 85 96 102 120 128 136 160 170 192 204 240 255 272 320 340 384 408 480 510 544 640 680 816 960 1020 1088 1360 1632 1920 2040 2089 2176 2720 3264 4080 4178 5440 6267 6528 8160 8356 10445 10880 12534 16320 16712 20890 25068 31335 32640 33424 35513 41780 50136 62670 66848 71026 83560 100272 106539 125340 133696 142052 167120 177565 200544 213078 250680 267392 284104 334240 355130 401088 426156 501360 532695 568208 668480 710260 802176 852312 1002720 1065390 1136416 1336960 1420520 1704624 2005440 2130780 2272832 2841040 3409248 4010880 4261560 4545664 5682080 6818496 8523120 11364160 13636992 17046240 22728320 34092480 68184960