Search a number
-
+
331047 = 346167
BaseRepresentation
bin1010000110100100111
3121211010000
41100310213
541043142
611032343
72546103
oct1206447
9554100
10331047
112067a2
1213b6b3
13b78b2
1488903
156814c
hex50d27

331047 has 20 divisors (see below), whose sum is σ = 510136. Its totient is φ = 213840.

The previous prime is 331043. The next prime is 331063. The reversal of 331047 is 740133.

331047 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 331047 - 22 = 331043 is a prime.

It is a Duffinian number.

331047 is strictly pandigital in base 7.

It is a nialpdrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331043) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4908 + ... + 4974.

2331047 is an apocalyptic number.

331047 is a deficient number, since it is larger than the sum of its proper divisors (179089).

331047 is an equidigital number, since it uses as much as digits as its factorization.

331047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 331047 is about 575.3668395033. The cubic root of 331047 is about 69.1772381061.

The spelling of 331047 in words is "three hundred thirty-one thousand, forty-seven".

Divisors: 1 3 9 27 61 67 81 183 201 549 603 1647 1809 4087 4941 5427 12261 36783 110349 331047