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68465249 = 359190711
BaseRepresentation
bin1000001010010…
…11001001100001
311202211101122222
410011023021201
5120011341444
610443240425
71460642066
oct405131141
9152741588
1068465249
1135712a56
121ab19115
13112520a8
149142c6d
156025eee
hex414b261

68465249 has 4 divisors (see below), whose sum is σ = 68656320. Its totient is φ = 68274180.

The previous prime is 68465209. The next prime is 68465251. The reversal of 68465249 is 94256486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68465249 - 28 = 68464993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68465209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94997 + ... + 95714.

It is an arithmetic number, because the mean of its divisors is an integer number (17164080).

Almost surely, 268465249 is an apocalyptic number.

It is an amenable number.

68465249 is a deficient number, since it is larger than the sum of its proper divisors (191071).

68465249 is a wasteful number, since it uses less digits than its factorization.

68465249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191070.

The product of its digits is 414720, while the sum is 44.

The square root of 68465249 is about 8274.3730276076. The cubic root of 68465249 is about 409.0942707079.

The spelling of 68465249 in words is "sixty-eight million, four hundred sixty-five thousand, two hundred forty-nine".

Divisors: 1 359 190711 68465249