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340257 = 3293911
BaseRepresentation
bin1010011000100100001
3122021202010
41103010201
541342012
611143133
72615001
oct1230441
9567663
10340257
11212705
12144aa9
13bbb48
148c001
156ac3c
hex53121

340257 has 8 divisors (see below), whose sum is σ = 469440. Its totient is φ = 218960.

The previous prime is 340237. The next prime is 340261. The reversal of 340257 is 752043.

It is a happy number.

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 340257 - 27 = 340129 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340257.

It is not an unprimeable number, because it can be changed into a prime (340237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1869 + ... + 2042.

It is an arithmetic number, because the mean of its divisors is an integer number (58680).

2340257 is an apocalyptic number.

It is an amenable number.

340257 is a deficient number, since it is larger than the sum of its proper divisors (129183).

340257 is a wasteful number, since it uses less digits than its factorization.

340257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 340257 is about 583.3155235376. The cubic root of 340257 is about 69.8129017237.

The spelling of 340257 in words is "three hundred forty thousand, two hundred fifty-seven".

Divisors: 1 3 29 87 3911 11733 113419 340257