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145851 = 361797
BaseRepresentation
bin100011100110111011
321102001220
4203212323
514131401
63043123
71145136
oct434673
9242056
10145851
119a642
12704a3
1351504
143b21d
152d336
hex239bb

145851 has 8 divisors (see below), whose sum is σ = 197904. Its totient is φ = 95520.

The previous prime is 145829. The next prime is 145861. The reversal of 145851 is 158541.

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

It is not a de Polignac number, because 145851 - 25 = 145819 is a prime.

It is a plaindrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 145851.

It is not an unprimeable number, because it can be changed into a prime (145861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216 + ... + 581.

It is an arithmetic number, because the mean of its divisors is an integer number (24738).

2145851 is an apocalyptic number.

145851 is a deficient number, since it is larger than the sum of its proper divisors (52053).

145851 is an equidigital number, since it uses as much as digits as its factorization.

145851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861.

The product of its digits is 800, while the sum is 24.

The square root of 145851 is about 381.9044383089. The cubic root of 145851 is about 52.6384553998.

The spelling of 145851 in words is "one hundred forty-five thousand, eight hundred fifty-one".

Divisors: 1 3 61 183 797 2391 48617 145851