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340444141 = 3750918077
BaseRepresentation
bin10100010010101…
…100001111101101
3212201121100120021
4110102230033231
51144123203031
653440522141
711302504342
oct2422541755
9781540507
10340444141
111651987a4
1296020351
13556bb84b
14333007c9
151ed4c511
hex144ac3ed

340444141 has 8 divisors (see below), whose sum is σ = 350351640. Its totient is φ = 330573888.

The previous prime is 340444133. The next prime is 340444163. The reversal of 340444141 is 141444043.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 270470916 + 69973225 = 16446^2 + 8365^2 .

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 340444141 - 23 = 340444133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340444121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9795 + ... + 27871.

It is an arithmetic number, because the mean of its divisors is an integer number (43793955).

Almost surely, 2340444141 is an apocalyptic number.

It is an amenable number.

340444141 is a deficient number, since it is larger than the sum of its proper divisors (9907499).

340444141 is a wasteful number, since it uses less digits than its factorization.

340444141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18623.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 340444141 is about 18451.1284478755. The cubic root of 340444141 is about 698.2569838601.

Adding to 340444141 its reverse (141444043), we get a palindrome (481888184).

The spelling of 340444141 in words is "three hundred forty million, four hundred forty-four thousand, one hundred forty-one".

Divisors: 1 37 509 18077 18833 668849 9201193 340444141