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68898163 = 412696247
BaseRepresentation
bin1000001101101…
…00110101110011
311210122101111211
410012310311303
5120114220123
610500420551
71464424165
oct406646563
9153571454
1068898163
1135989234
121b0a7757
1311374159
149216935
1560ae40d
hex41b4d73

68898163 has 8 divisors (see below), whose sum is σ = 70852320. Its totient is φ = 66957120.

The previous prime is 68898149. The next prime is 68898173. The reversal of 68898163 is 36189886.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68898163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68898103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7906 + ... + 14152.

It is an arithmetic number, because the mean of its divisors is an integer number (8856540).

Almost surely, 268898163 is an apocalyptic number.

68898163 is a deficient number, since it is larger than the sum of its proper divisors (1954157).

68898163 is a wasteful number, since it uses less digits than its factorization.

68898163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557.

The product of its digits is 497664, while the sum is 49.

The square root of 68898163 is about 8300.4917324216. The cubic root of 68898163 is about 409.9547104445.

The spelling of 68898163 in words is "sixty-eight million, eight hundred ninety-eight thousand, one hundred sixty-three".

Divisors: 1 41 269 6247 11029 256127 1680443 68898163