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68146395 = 3536712379
BaseRepresentation
bin1000000111111…
…01010011011011
311202020012021120
410003331103123
5114421141040
610432340323
71455143352
oct403752333
9152205246
1068146395
1135515439
121a9a46a3
131116cc15
14909c999
155eb17d0
hex40fd4db

68146395 has 16 divisors (see below), whose sum is σ = 109340160. Its totient is φ = 36242784.

The previous prime is 68146391. The next prime is 68146411. The reversal of 68146395 is 59364186.

It is not a de Polignac number, because 68146395 - 22 = 68146391 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68146391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685 + ... + 11694.

It is an arithmetic number, because the mean of its divisors is an integer number (6833760).

Almost surely, 268146395 is an apocalyptic number.

68146395 is a deficient number, since it is larger than the sum of its proper divisors (41193765).

68146395 is a wasteful number, since it uses less digits than its factorization.

68146395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12754.

The product of its digits is 155520, while the sum is 42.

The square root of 68146395 is about 8255.0829795951. The cubic root of 68146395 is about 408.4582090187.

The spelling of 68146395 in words is "sixty-eight million, one hundred forty-six thousand, three hundred ninety-five".

Divisors: 1 3 5 15 367 1101 1835 5505 12379 37137 61895 185685 4543093 13629279 22715465 68146395