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131466243 = 352978273
BaseRepresentation
bin1111101011000…
…00010000000011
3100011101011210010
413311200100003
5232123404433
621013440003
73154305336
oct765402003
9304334703
10131466243
1168233597
1238040003
132130cc9c
141366261d
15b81ce63
hex7d60403

131466243 has 8 divisors (see below), whose sum is σ = 175342608. Its totient is φ = 87617024.

The previous prime is 131466239. The next prime is 131466277. The reversal of 131466243 is 342664131.

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

It is a cyclic number.

It is not a de Polignac number, because 131466243 - 22 = 131466239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131466243.

It is not an unprimeable number, because it can be changed into a prime (131466743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11755 + ... + 20027.

It is an arithmetic number, because the mean of its divisors is an integer number (21917826).

Almost surely, 2131466243 is an apocalyptic number.

131466243 is a deficient number, since it is larger than the sum of its proper divisors (43876365).

131466243 is an equidigital number, since it uses as much as digits as its factorization.

131466243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13573.

The product of its digits is 10368, while the sum is 30.

The square root of 131466243 is about 11465.8729715622. The cubic root of 131466243 is about 508.4771219025.

The spelling of 131466243 in words is "one hundred thirty-one million, four hundred sixty-six thousand, two hundred forty-three".

Divisors: 1 3 5297 8273 15891 24819 43822081 131466243