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131375206 = 2127751439
BaseRepresentation
bin1111101010010…
…10000001100110
3100011012112220101
413311022001212
5232113001311
621011454314
73153446044
oct765120146
9304175811
10131375206
1168181156
1237bb739a
13212aa711
141363b394
15b800ec1
hex7d4a066

131375206 has 8 divisors (see below), whose sum is σ = 197220960. Its totient is φ = 65634888.

The previous prime is 131375203. The next prime is 131375207. The reversal of 131375206 is 602573131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131375203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23166 + ... + 28273.

It is an arithmetic number, because the mean of its divisors is an integer number (24652620).

Almost surely, 2131375206 is an apocalyptic number.

131375206 is a deficient number, since it is larger than the sum of its proper divisors (65845754).

131375206 is a wasteful number, since it uses less digits than its factorization.

131375206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52718.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 131375206 is about 11461.9023726430. The cubic root of 131375206 is about 508.3597256804.

The spelling of 131375206 in words is "one hundred thirty-one million, three hundred seventy-five thousand, two hundred six".

Divisors: 1 2 1277 2554 51439 102878 65687603 131375206