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131803934 = 2190134667
BaseRepresentation
bin1111101101100…
…10101100011110
3100012000100000012
413312302230132
5232220211214
621025003222
73160213013
oct766625436
9305010005
10131803934
1168444279
1238183512
13213ca8c2
141370d70a
15b88803e
hex7db2b1e

131803934 has 8 divisors (see below), whose sum is σ = 197815608. Its totient is φ = 65865400.

The previous prime is 131803921. The next prime is 131803937. The reversal of 131803934 is 439308131.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 131803934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131803937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13532 + ... + 21135.

It is an arithmetic number, because the mean of its divisors is an integer number (24726951).

Almost surely, 2131803934 is an apocalyptic number.

131803934 is a deficient number, since it is larger than the sum of its proper divisors (66011674).

131803934 is a wasteful number, since it uses less digits than its factorization.

131803934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36570.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 131803934 is about 11480.5894447977. The cubic root of 131803934 is about 508.9121165541.

The spelling of 131803934 in words is "one hundred thirty-one million, eight hundred three thousand, nine hundred thirty-four".

Divisors: 1 2 1901 3802 34667 69334 65901967 131803934