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340679131 = 13139188533
BaseRepresentation
bin10100010011100…
…101100111011011
3212202001021220121
4110103211213123
51144203213011
653445534111
711304503422
oct2423454733
9782037817
10340679131
11165339301
1296114337
13557717b0
14333622b9
151ed96e71
hex144e59db

340679131 has 8 divisors (see below), whose sum is σ = 369526640. Its totient is φ = 312208992.

The previous prime is 340679117. The next prime is 340679189. The reversal of 340679131 is 131976043.

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 340679131 - 223 = 332290523 is a prime.

It is a super-2 number, since 2×3406791312 = 232124540597830322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340679111) 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, 92460 + ... + 96073.

It is an arithmetic number, because the mean of its divisors is an integer number (46190830).

Almost surely, 2340679131 is an apocalyptic number.

340679131 is a deficient number, since it is larger than the sum of its proper divisors (28847509).

340679131 is a wasteful number, since it uses less digits than its factorization.

340679131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188685.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 340679131 is about 18457.4952526067. The cubic root of 340679131 is about 698.4176031324.

The spelling of 340679131 in words is "three hundred forty million, six hundred seventy-nine thousand, one hundred thirty-one".

Divisors: 1 13 139 1807 188533 2450929 26206087 340679131