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1051213 = 1961907
BaseRepresentation
bin100000000101001001101
31222101222211
410000221031
5232114323
634310421
711635522
oct4005115
91871884
101051213
11658879
12428411
132aa627
141d5149
1515b70d
hex100a4d

1051213 has 8 divisors (see below), whose sum is σ = 1125920. Its totient is φ = 978480.

The previous prime is 1051181. The next prime is 1051247. The reversal of 1051213 is 3121501.

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

It is a cyclic number.

It is not a de Polignac number, because 1051213 - 25 = 1051181 is a prime.

It is a super-2 number, since 2×10512132 = 2210097542738, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1051193 and 1051202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706 + ... + 1612.

It is an arithmetic number, because the mean of its divisors is an integer number (140740).

21051213 is an apocalyptic number.

It is an amenable number.

1051213 is a deficient number, since it is larger than the sum of its proper divisors (74707).

1051213 is an equidigital number, since it uses as much as digits as its factorization.

1051213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1051213 is about 1025.2867891473. The cubic root of 1051213 is about 101.6787599458.

Adding to 1051213 its reverse (3121501), we get a palindrome (4172714).

The spelling of 1051213 in words is "one million, fifty-one thousand, two hundred thirteen".

Divisors: 1 19 61 907 1159 17233 55327 1051213