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131054043 = 343684681
BaseRepresentation
bin1111100111110…
…11100111011011
3100010121020100110
413303323213123
5232022212133
621000535403
73150640521
oct763734733
9303536313
10131054043
1167a8192a
1237a81563
13211c7493
1413596311
15b78ac63
hex7cfb9db

131054043 has 4 divisors (see below), whose sum is σ = 174738728. Its totient is φ = 87369360.

The previous prime is 131054041. The next prime is 131054051. The reversal of 131054043 is 340450131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 131054043 - 21 = 131054041 is a prime.

It is a super-3 number, since 3×1310540433 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131054041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21842338 + ... + 21842343.

It is an arithmetic number, because the mean of its divisors is an integer number (43684682).

Almost surely, 2131054043 is an apocalyptic number.

131054043 is a deficient number, since it is larger than the sum of its proper divisors (43684685).

131054043 is an equidigital number, since it uses as much as digits as its factorization.

131054043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43684684.

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

The square root of 131054043 is about 11447.8837782360. The cubic root of 131054043 is about 507.9451381740.

The spelling of 131054043 in words is "one hundred thirty-one million, fifty-four thousand, forty-three".

Divisors: 1 3 43684681 131054043