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68519304 = 2333745317
BaseRepresentation
bin1000001010110…
…00010110001000
311202221010211000
410011120112020
5120020104204
610444335000
71461255510
oct405302610
9152833730
1068519304
113574a627
121ab44460
1311270889
149158840
156037039
hex4158588

68519304 has 64 divisors (see below), whose sum is σ = 217526400. Its totient is φ = 19576512.

The previous prime is 68519303. The next prime is 68519329. The reversal of 68519304 is 40391586.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (68519303) 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, 21147 + ... + 24170.

It is an arithmetic number, because the mean of its divisors is an integer number (3398850).

Almost surely, 268519304 is an apocalyptic number.

It is an amenable number.

68519304 is an abundant number, since it is smaller than the sum of its proper divisors (149007096).

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

68519304 is a wasteful number, since it uses less digits than its factorization.

68519304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45339 (or 45329 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 68519304 is about 8277.6387937624. The cubic root of 68519304 is about 409.2019057195.

The spelling of 68519304 in words is "sixty-eight million, five hundred nineteen thousand, three hundred four".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1512 45317 90634 135951 181268 271902 317219 362536 407853 543804 634438 815706 951657 1087608 1223559 1268876 1631412 1903314 2447118 2537752 2854971 3262824 3806628 4894236 5709942 7613256 8564913 9788472 11419884 17129826 22839768 34259652 68519304