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68150399 = 174393229
BaseRepresentation
bin1000000111111…
…10010001111111
311202020101202212
410003332101333
5114421303044
610432411035
71455161132
oct403762177
9152211685
1068150399
1135518449
121a9a6a7b
13111719a5
1490a0219
155eb2a9e
hex40fe47f

68150399 has 8 divisors (see below), whose sum is σ = 73838160. Its totient is φ = 62649216.

The previous prime is 68150393. The next prime is 68150417. The reversal of 68150399 is 99305186.

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

It is not a de Polignac number, because 68150399 - 28 = 68150143 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 (68150393) 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, 45884 + ... + 47345.

It is an arithmetic number, because the mean of its divisors is an integer number (9229770).

Almost surely, 268150399 is an apocalyptic number.

68150399 is a deficient number, since it is larger than the sum of its proper divisors (5687761).

68150399 is a wasteful number, since it uses less digits than its factorization.

68150399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93289.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 68150399 is about 8255.3254932801. The cubic root of 68150399 is about 408.4662086330.

The spelling of 68150399 in words is "sixty-eight million, one hundred fifty thousand, three hundred ninety-nine".

Divisors: 1 17 43 731 93229 1584893 4008847 68150399