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340352131 = 7313135011
BaseRepresentation
bin10100010010010…
…101110010000011
3212201102200100111
4110102111302003
51144112232011
653434532151
711301642160
oct2422256203
9781380314
10340352131
11165135659
1295b97057
13556889c2
14332b9067
151ed30121
hex14495c83

340352131 has 16 divisors (see below), whose sum is σ = 402884608. Its totient is φ = 281361600.

The previous prime is 340352113. The next prime is 340352141. The reversal of 340352131 is 131253043.

It is a cyclic number.

It is not a de Polignac number, because 340352131 - 219 = 339827843 is a prime.

It is a super-2 number, since 2×3403521312 = 231679146152482322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340352101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65416 + ... + 70426.

It is an arithmetic number, because the mean of its divisors is an integer number (25180288).

Almost surely, 2340352131 is an apocalyptic number.

340352131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

340352131 is a deficient number, since it is larger than the sum of its proper divisors (62532477).

340352131 is a wasteful number, since it uses less digits than its factorization.

340352131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5362.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 340352131 is about 18448.6349359512. The cubic root of 340352131 is about 698.1940734772.

The spelling of 340352131 in words is "three hundred forty million, three hundred fifty-two thousand, one hundred thirty-one".

Divisors: 1 7 31 217 313 2191 5011 9703 35077 67921 155341 1087387 1568443 10979101 48621733 340352131