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131214235 = 526242847
BaseRepresentation
bin1111101001000…
…10101110011011
3100010220101002111
413310202232123
5232042323420
621004213151
73152205535
oct764425633
9303811074
10131214235
1168081219
1237b3a1b7
1321252379
14135d8855
15b7bd45a
hex7d22b9b

131214235 has 4 divisors (see below), whose sum is σ = 157457088. Its totient is φ = 104971384.

The previous prime is 131214221. The next prime is 131214253. The reversal of 131214235 is 532412131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532412131 = 2918359039.

It is a cyclic number.

It is not a de Polignac number, because 131214235 - 29 = 131213723 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13121419 + ... + 13121428.

It is an arithmetic number, because the mean of its divisors is an integer number (39364272).

Almost surely, 2131214235 is an apocalyptic number.

131214235 is a deficient number, since it is larger than the sum of its proper divisors (26242853).

131214235 is an equidigital number, since it uses as much as digits as its factorization.

131214235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26242852.

The product of its digits is 720, while the sum is 22.

The square root of 131214235 is about 11454.8782184709. The cubic root of 131214235 is about 508.1520136861.

Adding to 131214235 its reverse (532412131), we get a palindrome (663626366).

The spelling of 131214235 in words is "one hundred thirty-one million, two hundred fourteen thousand, two hundred thirty-five".

Divisors: 1 5 26242847 131214235