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1214302131 = 3376424879
BaseRepresentation
bin100100001100000…
…1100011110110011
310010121220221101000
41020120030132303
54441330132011
6320254413043
742043253310
oct11030143663
93117827330
101214302131
11573495189
1229a801183
13164761293
14b73b3d07
1571913356
hex4860c7b3

1214302131 has 16 divisors (see below), whose sum is σ = 2055961600. Its totient is φ = 693886824.

The previous prime is 1214302097. The next prime is 1214302151. The reversal of 1214302131 is 1312034121.

1214302131 is a `hidden beast` number, since 1 + 21 + 430 + 213 + 1 = 666.

It is not a de Polignac number, because 1214302131 - 27 = 1214302003 is a prime.

It is a super-2 number, since 2×12143021312 = 2949059330702282322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1214302151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3212251 + ... + 3212628.

It is an arithmetic number, because the mean of its divisors is an integer number (128497600).

Almost surely, 21214302131 is an apocalyptic number.

1214302131 is a deficient number, since it is larger than the sum of its proper divisors (841659469).

1214302131 is an equidigital number, since it uses as much as digits as its factorization.

1214302131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6424895 (or 6424889 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1214302131 is about 34846.8381779466. The cubic root of 1214302131 is about 1066.8636521722.

Adding to 1214302131 its reverse (1312034121), we get a palindrome (2526336252).

The spelling of 1214302131 in words is "one billion, two hundred fourteen million, three hundred two thousand, one hundred thirty-one".

Divisors: 1 3 7 9 21 27 63 189 6424879 19274637 44974153 57823911 134922459 173471733 404767377 1214302131