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1242052053 = 31123421631
BaseRepresentation
bin100101000001000…
…0011010111010101
310012120010210002220
41022002003113111
510020431131203
6323125252553
742531161004
oct11202032725
93176123086
101242052053
11588119100
122a7b64159
1316a429058
14bad58c3b
1574095653
hex4a0835d5

1242052053 has 12 divisors (see below), whose sum is σ = 1820308224. Its totient is φ = 752758600.

The previous prime is 1242052039. The next prime is 1242052069. The reversal of 1242052053 is 3502502421.

It is not a de Polignac number, because 1242052053 - 26 = 1242051989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242052093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1710453 + ... + 1711178.

It is an arithmetic number, because the mean of its divisors is an integer number (151692352).

Almost surely, 21242052053 is an apocalyptic number.

It is an amenable number.

1242052053 is a deficient number, since it is larger than the sum of its proper divisors (578256171).

1242052053 is a wasteful number, since it uses less digits than its factorization.

1242052053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421656 (or 3421645 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1242052053 is about 35242.7588732778. The cubic root of 1242052053 is about 1074.9293778737.

Adding to 1242052053 its reverse (3502502421), we get a palindrome (4744554474).

The spelling of 1242052053 in words is "one billion, two hundred forty-two million, fifty-two thousand, fifty-three".

Divisors: 1 3 11 33 121 363 3421631 10264893 37637941 112913823 414017351 1242052053