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146112013 = 509287057
BaseRepresentation
bin10001011010101…
…11111000001101
3101011221021000001
420231113320031
5244401041023
622255404301
73422634355
oct1055277015
9334837001
10146112013
1175527133
1240b23691
132436a318
1415595b65
15cc626ad
hex8b57e0d

146112013 has 4 divisors (see below), whose sum is σ = 146399580. Its totient is φ = 145824448.

The previous prime is 146112011. The next prime is 146112023. The reversal of 146112013 is 310211641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88397604 + 57714409 = 9402^2 + 7597^2 .

It is a cyclic number.

It is not a de Polignac number, because 146112013 - 21 = 146112011 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 (146112011) 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, 143020 + ... + 144037.

It is an arithmetic number, because the mean of its divisors is an integer number (36599895).

Almost surely, 2146112013 is an apocalyptic number.

It is an amenable number.

146112013 is a deficient number, since it is larger than the sum of its proper divisors (287567).

146112013 is an equidigital number, since it uses as much as digits as its factorization.

146112013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287566.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 146112013 is about 12087.6802158231. The cubic root of 146112013 is about 526.6983704588.

Adding to 146112013 its reverse (310211641), we get a palindrome (456323654).

The spelling of 146112013 in words is "one hundred forty-six million, one hundred twelve thousand, thirteen".

Divisors: 1 509 287057 146112013