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68497416 = 23321373181
BaseRepresentation
bin1000001010100…
…11000000001000
311202220000210100
410011103000020
5120013404131
610444045400
71461134631
oct405230010
9152800710
1068497416
1135735139
121ab33860
1311263920
149150888
1560307e6
hex4153008

68497416 has 48 divisors (see below), whose sum is σ = 199786860. Its totient is φ = 21075840.

The previous prime is 68497399. The next prime is 68497421. The reversal of 68497416 is 61479486.

It can be written as a sum of positive squares in 2 ways, for example, as 61685316 + 6812100 = 7854^2 + 2610^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35655 + ... + 37526.

Almost surely, 268497416 is an apocalyptic number.

It is an amenable number.

68497416 is an abundant number, since it is smaller than the sum of its proper divisors (131289444).

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

68497416 is a wasteful number, since it uses less digits than its factorization.

68497416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73206 (or 73199 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 68497416 is about 8276.3165720023. The cubic root of 68497416 is about 409.1583288749.

The spelling of 68497416 in words is "sixty-eight million, four hundred ninety-seven thousand, four hundred sixteen".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 36 39 52 72 78 104 117 156 234 312 468 936 73181 146362 219543 292724 439086 585448 658629 878172 951353 1317258 1756344 1902706 2634516 2854059 3805412 5269032 5708118 7610824 8562177 11416236 17124354 22832472 34248708 68497416