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131494045 = 5175914951
BaseRepresentation
bin1111101011001…
…11000010011101
3100011102120220211
413311213002131
5232130302140
621014212421
73154452364
oct765470235
9304376824
10131494045
1168252471
1238054111
132131c837
141366c7db
15b8262ea
hex7d6709d

131494045 has 8 divisors (see below), whose sum is σ = 157893120. Its totient is φ = 105128400.

The previous prime is 131494039. The next prime is 131494049. The reversal of 131494045 is 540494131.

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

It is not a de Polignac number, because 131494045 - 23 = 131494037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131493998 and 131494016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131494049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320 + ... + 16270.

It is an arithmetic number, because the mean of its divisors is an integer number (19736640).

Almost surely, 2131494045 is an apocalyptic number.

It is an amenable number.

131494045 is a deficient number, since it is larger than the sum of its proper divisors (26399075).

131494045 is a wasteful number, since it uses less digits than its factorization.

131494045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16715.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 131494045 is about 11467.0852879012. The cubic root of 131494045 is about 508.5129630031.

It can be divided in two parts, 1314 and 94045, that added together give a palindrome (95359).

The spelling of 131494045 in words is "one hundred thirty-one million, four hundred ninety-four thousand, forty-five".

Divisors: 1 5 1759 8795 14951 74755 26298809 131494045