Search a number
-
+
131432043 = 3229719073
BaseRepresentation
bin1111101010101…
…11111001101011
3100011022102212110
413311113321223
5232121311133
621013013403
73154103541
oct765277153
9304272773
10131432043
116820a926
1238024263
13212ca552
1413653d91
15b812c63
hex7d57e6b

131432043 has 8 divisors (see below), whose sum is σ = 175328208. Its totient is φ = 87578624.

The previous prime is 131432027. The next prime is 131432087. The reversal of 131432043 is 340234131.

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 131432043 - 24 = 131432027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131432023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2646 + ... + 16427.

It is an arithmetic number, because the mean of its divisors is an integer number (21916026).

Almost surely, 2131432043 is an apocalyptic number.

131432043 is a deficient number, since it is larger than the sum of its proper divisors (43896165).

131432043 is a wasteful number, since it uses less digits than its factorization.

131432043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21373.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 131432043 is about 11464.3814922568. The cubic root of 131432043 is about 508.4330258533.

Adding to 131432043 its reverse (340234131), we get a palindrome (471666174).

The spelling of 131432043 in words is "one hundred thirty-one million, four hundred thirty-two thousand, forty-three".

Divisors: 1 3 2297 6891 19073 57219 43810681 131432043