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1214021131 = 19296921521
BaseRepresentation
bin100100001011100…
…0111111000001011
310010121101122220121
41020113013320023
54441242134011
6320244404111
742041003131
oct11027077013
93117348817
101214021131
11573313054
1229a6a6637
131646933cb
14b733d751
15718a9e71
hex485c7e0b

1214021131 has 8 divisors (see below), whose sum is σ = 1278406800. Its totient is φ = 1149684480.

The previous prime is 1214021129. The next prime is 1214021141. The reversal of 1214021131 is 1311204121.

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 1214021131 - 21 = 1214021129 is a prime.

It is a super-2 number, since 2×12140211312 = 2947694613029038322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214021141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45651 + ... + 67171.

It is an arithmetic number, because the mean of its divisors is an integer number (159800850).

Almost surely, 21214021131 is an apocalyptic number.

1214021131 is a deficient number, since it is larger than the sum of its proper divisors (64385669).

1214021131 is a wasteful number, since it uses less digits than its factorization.

1214021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24509.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1214021131 is about 34842.8060150155. The cubic root of 1214021131 is about 1066.7813520026.

Adding to 1214021131 its reverse (1311204121), we get a palindrome (2525225252).

The spelling of 1214021131 in words is "one billion, two hundred fourteen million, twenty-one thousand, one hundred thirty-one".

Divisors: 1 19 2969 21521 56411 408899 63895849 1214021131