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342743870 = 2577961979
BaseRepresentation
bin10100011011011…
…101101100111110
3212212221012012102
4110123131230332
51200220300440
654002105102
711331163160
oct2433355476
9785835172
10342743870
111665195a7
129694b192
1356015531
143373c930
1520153b15
hex146ddb3e

342743870 has 32 divisors (see below), whose sum is σ = 714009600. Its totient is φ = 116022816.

The previous prime is 342743867. The next prime is 342743873. The reversal of 342743870 is 78347243.

It is an interprime number because it is at equal distance from previous prime (342743867) and next prime (342743873).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342743873) 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, 25460 + ... + 36519.

It is an arithmetic number, because the mean of its divisors is an integer number (22312800).

Almost surely, 2342743870 is an apocalyptic number.

342743870 is an abundant number, since it is smaller than the sum of its proper divisors (371265730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

342743870 is a wasteful number, since it uses less digits than its factorization.

342743870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62072.

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 342743870 is about 18513.3430260448. The cubic root of 342743870 is about 699.8257185169.

The spelling of 342743870 in words is "three hundred forty-two million, seven hundred forty-three thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 79 158 395 553 790 1106 2765 5530 61979 123958 309895 433853 619790 867706 2169265 4338530 4896341 9792682 24481705 34274387 48963410 68548774 171371935 342743870