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131242203 = 3214582467
BaseRepresentation
bin1111101001010…
…01100011011011
3100010221210110100
413310221203123
5232044222303
621004550443
73152353221
oct764514333
9303853410
10131242203
11680a0234
1237b52423
1321262011
1413604b11
15b7c68a3
hex7d298db

131242203 has 6 divisors (see below), whose sum is σ = 189572084. Its totient is φ = 87494796.

The previous prime is 131242201. The next prime is 131242217. The reversal of 131242203 is 302242131.

It is not a de Polignac number, because 131242203 - 21 = 131242201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131242201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7291225 + ... + 7291242.

Almost surely, 2131242203 is an apocalyptic number.

131242203 is a deficient number, since it is larger than the sum of its proper divisors (58329881).

131242203 is a wasteful number, since it uses less digits than its factorization.

131242203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14582473 (or 14582470 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 131242203 is about 11456.0989433576. The cubic root of 131242203 is about 508.1881149162.

Adding to 131242203 its reverse (302242131), we get a palindrome (433484334).

The spelling of 131242203 in words is "one hundred thirty-one million, two hundred forty-two thousand, two hundred three".

Divisors: 1 3 9 14582467 43747401 131242203