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68654400 = 2635214303
BaseRepresentation
bin1000001011110…
…01010101000000
311210012000010120
410011321111000
5120033420100
610451300240
71462360413
oct405712500
9153160116
1068654400
1135832081
121abaa680
13112ba209
149191b7a
1560620a0
hex4179540

68654400 has 84 divisors (see below), whose sum is σ = 225259392. Its totient is φ = 18306560.

The previous prime is 68654389. The next prime is 68654437. The reversal of 68654400 is 445686.

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 11 ways as a sum of consecutive naturals, for example, 2352 + ... + 11951.

Almost surely, 268654400 is an apocalyptic number.

68654400 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 68654400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112629696).

68654400 is an abundant number, since it is smaller than the sum of its proper divisors (156604992).

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

68654400 is a wasteful number, since it uses less digits than its factorization.

68654400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14328 (or 14313 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 68654400 is about 8285.7950734978. The cubic root of 68654400 is about 409.4706633068.

The spelling of 68654400 in words is "sixty-eight million, six hundred fifty-four thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 150 160 192 200 240 300 320 400 480 600 800 960 1200 1600 2400 4800 14303 28606 42909 57212 71515 85818 114424 143030 171636 214545 228848 286060 343272 357575 429090 457696 572120 686544 715150 858180 915392 1072725 1144240 1373088 1430300 1716360 2145450 2288480 2746176 2860600 3432720 4290900 4576960 5721200 6865440 8581800 11442400 13730880 17163600 22884800 34327200 68654400