Search a number
-
+
131347078 = 2211409761
BaseRepresentation
bin1111101010000…
…11001010000110
3100011011010022121
413311003022012
5232111101303
621011120154
73153301042
oct765031206
9304133277
10131347078
1168162005
1237ba305a
132129a985
1413631022
15b7e79bd
hex7d43286

131347078 has 16 divisors (see below), whose sum is σ = 198699120. Its totient is φ = 65116800.

The previous prime is 131347037. The next prime is 131347079. The reversal of 131347078 is 870743131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131347079) 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 7 ways as a sum of consecutive naturals, for example, 172218 + ... + 172978.

It is an arithmetic number, because the mean of its divisors is an integer number (12418695).

Almost surely, 2131347078 is an apocalyptic number.

131347078 is a deficient number, since it is larger than the sum of its proper divisors (67352042).

131347078 is a wasteful number, since it uses less digits than its factorization.

131347078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 131347078 is about 11460.6752855144. The cubic root of 131347078 is about 508.3234424186.

The spelling of 131347078 in words is "one hundred thirty-one million, three hundred forty-seven thousand, seventy-eight".

Divisors: 1 2 211 409 422 761 818 1522 86299 160571 172598 311249 321142 622498 65673539 131347078