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1213024053 = 3404341351
BaseRepresentation
bin100100001001101…
…0100011100110101
310010112112000011210
41020103110130311
54441013232203
6320211152033
742026351163
oct11023243465
93115460153
101213024053
115727a1a1a
1229a2a5619
13164404617
14b7160233
157175e803
hex484d4735

1213024053 has 4 divisors (see below), whose sum is σ = 1617365408. Its totient is φ = 808682700.

The previous prime is 1213024051. The next prime is 1213024063. The reversal of 1213024053 is 3504203121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3504203121 = 31168067707.

It is not a de Polignac number, because 1213024053 - 21 = 1213024051 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 (1213024051) 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, 202170673 + ... + 202170678.

It is an arithmetic number, because the mean of its divisors is an integer number (404341352).

Almost surely, 21213024053 is an apocalyptic number.

It is an amenable number.

1213024053 is a deficient number, since it is larger than the sum of its proper divisors (404341355).

1213024053 is an equidigital number, since it uses as much as digits as its factorization.

1213024053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404341354.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1213024053 is about 34828.4948425854. The cubic root of 1213024053 is about 1066.4892221214.

Adding to 1213024053 its reverse (3504203121), we get a palindrome (4717227174).

The spelling of 1213024053 in words is "one billion, two hundred thirteen million, twenty-four thousand, fifty-three".

Divisors: 1 3 404341351 1213024053