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248629 = 1092281
BaseRepresentation
bin111100101100110101
3110122001111
4330230311
530424004
65155021
72053603
oct745465
9418044
10248629
1115a887
12bba71
1389224
1466873
154da04
hex3cb35

248629 has 4 divisors (see below), whose sum is σ = 251020. Its totient is φ = 246240.

The previous prime is 248627. The next prime is 248639. The reversal of 248629 is 926842.

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 161604 + 87025 = 402^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 248629 - 21 = 248627 is a prime.

It is a Duffinian number.

248629 is a lucky number.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 248629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248621) 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 3 ways as a sum of consecutive naturals, for example, 1032 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (62755).

2248629 is an apocalyptic number.

It is an amenable number.

248629 is a deficient number, since it is larger than the sum of its proper divisors (2391).

248629 is a wasteful number, since it uses less digits than its factorization.

248629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390.

The product of its digits is 6912, while the sum is 31.

The square root of 248629 is about 498.6271151873. The cubic root of 248629 is about 62.8806845605.

The spelling of 248629 in words is "two hundred forty-eight thousand, six hundred twenty-nine".

Divisors: 1 109 2281 248629