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131042325 = 3521747231
BaseRepresentation
bin1111100111110…
…00110000010101
3100010120122021110
413303320300111
5232021323300
621000405233
73150561411
oct763706025
9303518243
10131042325
1167a74047
1237a76819
13211c204b
1413591d41
15b787550
hex7cf8c15

131042325 has 12 divisors (see below), whose sum is σ = 216656768. Its totient is φ = 69889200.

The previous prime is 131042299. The next prime is 131042347. The reversal of 131042325 is 523240131.

It is not a de Polignac number, because 131042325 - 213 = 131034133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 873541 + ... + 873690.

Almost surely, 2131042325 is an apocalyptic number.

131042325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131042325 is a deficient number, since it is larger than the sum of its proper divisors (85614443).

131042325 is a wasteful number, since it uses less digits than its factorization.

131042325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747244 (or 1747239 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 131042325 is about 11447.3719691465. The cubic root of 131042325 is about 507.9299986728.

Adding to 131042325 its reverse (523240131), we get a palindrome (654282456).

The spelling of 131042325 in words is "one hundred thirty-one million, forty-two thousand, three hundred twenty-five".

Divisors: 1 3 5 15 25 75 1747231 5241693 8736155 26208465 43680775 131042325