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68102304 = 2534791481
BaseRepresentation
bin1000000111100…
…10100010100000
311202010221210120
410003302202200
5114413233204
610431400240
71454600664
oct403624240
9152127716
1068102304
11354952a6
121a983080
1311155b2a
14908a8a4
155ea36d9
hex40f28a0

68102304 has 48 divisors (see below), whose sum is σ = 179262720. Its totient is φ = 22638080.

The previous prime is 68102299. The next prime is 68102339. The reversal of 68102304 is 40320186.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45244 + ... + 46724.

It is an arithmetic number, because the mean of its divisors is an integer number (3734640).

Almost surely, 268102304 is an apocalyptic number.

It is an amenable number.

68102304 is an abundant number, since it is smaller than the sum of its proper divisors (111160416).

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

68102304 is a wasteful number, since it uses less digits than its factorization.

68102304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 68102304 is about 8252.4120110426. The cubic root of 68102304 is about 408.3700986287.

The spelling of 68102304 in words is "sixty-eight million, one hundred two thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 479 958 1437 1481 1916 2874 2962 3832 4443 5748 5924 7664 8886 11496 11848 15328 17772 22992 23696 35544 45984 47392 71088 142176 709399 1418798 2128197 2837596 4256394 5675192 8512788 11350384 17025576 22700768 34051152 68102304