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68016951 = 327557439
BaseRepresentation
bin1000000110111…
…01101100110111
311201222121201100
410003131230313
5114403020301
610425501143
71454064102
oct403355467
9151877640
1068016951
1135437162
121a9417b3
1311126022
149067739
155e88286
hex40ddb37

68016951 has 6 divisors (see below), whose sum is σ = 98246720. Its totient is φ = 45344628.

The previous prime is 68016937. The next prime is 68016961. The reversal of 68016951 is 15961086.

It is not a de Polignac number, because 68016951 - 26 = 68016887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68016901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3778711 + ... + 3778728.

Almost surely, 268016951 is an apocalyptic number.

68016951 is a deficient number, since it is larger than the sum of its proper divisors (30229769).

68016951 is a wasteful number, since it uses less digits than its factorization.

68016951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7557445 (or 7557442 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 68016951 is about 8247.2389925356. The cubic root of 68016951 is about 408.1994231267.

The spelling of 68016951 in words is "sixty-eight million, sixteen thousand, nine hundred fifty-one".

Divisors: 1 3 9 7557439 22672317 68016951