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1071254213 = 1995383187
BaseRepresentation
bin111111110110100…
…000101011000101
32202122202100111222
4333312200223011
54143220113323
6254144410125
735355340061
oct7766405305
92678670458
101071254213
114aa771167
1225a916945
13140c27843
14a23b8aa1
15640a89c8
hex3fda0ac5

1071254213 has 4 divisors (see below), whose sum is σ = 1076637600. Its totient is φ = 1065870828.

The previous prime is 1071254159. The next prime is 1071254237. The reversal of 1071254213 is 3124521701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1071254213 - 210 = 1071253189 is a prime.

It is a super-2 number, since 2×10712542132 = 2295171177740498738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071254243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2691395 + ... + 2691792.

It is an arithmetic number, because the mean of its divisors is an integer number (269159400).

Almost surely, 21071254213 is an apocalyptic number.

It is an amenable number.

1071254213 is a deficient number, since it is larger than the sum of its proper divisors (5383387).

1071254213 is an equidigital number, since it uses as much as digits as its factorization.

1071254213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5383386.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1071254213 is about 32730.0200580446. The cubic root of 1071254213 is about 1023.2085982802.

Adding to 1071254213 its reverse (3124521701), we get a palindrome (4195775914).

The spelling of 1071254213 in words is "one billion, seventy-one million, two hundred fifty-four thousand, two hundred thirteen".

Divisors: 1 199 5383187 1071254213