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276213 = 3721879
BaseRepresentation
bin1000011011011110101
3112000220010
41003123311
532314323
65530433
72230200
oct1033365
9460803
10276213
11179583
12113a19
1398952
1472937
1556c93
hex436f5

276213 has 12 divisors (see below), whose sum is σ = 428640. Its totient is φ = 157752.

The previous prime is 276209. The next prime is 276229. The reversal of 276213 is 312672.

It is a happy number.

It is not a de Polignac number, because 276213 - 22 = 276209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a d-powerful number, because it can be written as 25 + 76 + 217 + 65 + 1 + 39 .

It is a self number, because there is not a number n which added to its sum of digits gives 276213.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 276213.

It is not an unprimeable number, because it can be changed into a prime (276293) 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 11 ways as a sum of consecutive naturals, for example, 793 + ... + 1086.

It is an arithmetic number, because the mean of its divisors is an integer number (35720).

2276213 is an apocalyptic number.

It is an amenable number.

276213 is a deficient number, since it is larger than the sum of its proper divisors (152427).

276213 is a wasteful number, since it uses less digits than its factorization.

276213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 1889 counting only the distinct ones).

The product of its digits is 504, while the sum is 21.

The square root of 276213 is about 525.5597016515. The cubic root of 276213 is about 65.1250452830.

Adding to 276213 its reverse (312672), we get a palindrome (588885).

It can be divided in two parts, 2762 and 13, that added together give a triangular number (2775 = T74).

The spelling of 276213 in words is "two hundred seventy-six thousand, two hundred thirteen".

Divisors: 1 3 7 21 49 147 1879 5637 13153 39459 92071 276213