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131242214 = 265621107
BaseRepresentation
bin1111101001010…
…01100011100110
3100010221210110202
413310221203212
5232044222324
621004550502
73152353235
oct764514346
9303853422
10131242214
11680a0244
1237b52432
132126201c
1413604b1c
15b7c68ae
hex7d298e6

131242214 has 4 divisors (see below), whose sum is σ = 196863324. Its totient is φ = 65621106.

The previous prime is 131242201. The next prime is 131242217. The reversal of 131242214 is 412242131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131242217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32810552 + ... + 32810555.

It is an arithmetic number, because the mean of its divisors is an integer number (49215831).

Almost surely, 2131242214 is an apocalyptic number.

131242214 is a deficient number, since it is larger than the sum of its proper divisors (65621110).

131242214 is an equidigital number, since it uses as much as digits as its factorization.

131242214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65621109.

The product of its digits is 384, while the sum is 20.

The square root of 131242214 is about 11456.0994234512. The cubic root of 131242214 is about 508.1881291141.

Adding to 131242214 its reverse (412242131), we get a palindrome (543484345).

The spelling of 131242214 in words is "one hundred thirty-one million, two hundred forty-two thousand, two hundred fourteen".

Divisors: 1 2 65621107 131242214