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131430535 = 532178171
BaseRepresentation
bin1111101010101…
…11100010000111
3100011022100210121
413311113202013
5232121234120
621013002411
73154066255
oct765274207
9304270717
10131430535
1168209785
1238023407
13212c9962
14136535d5
15b8125aa
hex7d57887

131430535 has 8 divisors (see below), whose sum is σ = 157784976. Its totient is φ = 105098880.

The previous prime is 131430529. The next prime is 131430599. The reversal of 131430535 is 535034131.

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

It is not a de Polignac number, because 131430535 - 23 = 131430527 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 7 ways as a sum of consecutive naturals, for example, 12000 + ... + 20170.

It is an arithmetic number, because the mean of its divisors is an integer number (19723122).

Almost surely, 2131430535 is an apocalyptic number.

131430535 is a deficient number, since it is larger than the sum of its proper divisors (26354441).

131430535 is an equidigital number, since it uses as much as digits as its factorization.

131430535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11393.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 131430535 is about 11464.3157231472. The cubic root of 131430535 is about 508.4310813252.

Adding to 131430535 its reverse (535034131), we get a palindrome (666464666).

The spelling of 131430535 in words is "one hundred thirty-one million, four hundred thirty thousand, five hundred thirty-five".