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340017349 = 7232111909
BaseRepresentation
bin10100010001000…
…100000011000101
3212200210200010011
4110101010003011
51144021023344
653423430221
711266046140
oct2421040305
9780720104
10340017349
11164a27081
1295a55371
135559c4c9
143322d057
151ecb5d34
hex144440c5

340017349 has 8 divisors (see below), whose sum is σ = 405486720. Its totient is φ = 278771856.

The previous prime is 340017347. The next prime is 340017361. The reversal of 340017349 is 943710043.

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 340017349 - 21 = 340017347 is a prime.

It is a super-2 number, since 2×3400173492 = 231223595241975602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340017349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340017341) 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, 1055794 + ... + 1056115.

It is an arithmetic number, because the mean of its divisors is an integer number (50685840).

Almost surely, 2340017349 is an apocalyptic number.

It is an amenable number.

340017349 is a deficient number, since it is larger than the sum of its proper divisors (65469371).

340017349 is a wasteful number, since it uses less digits than its factorization.

340017349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111939.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 340017349 is about 18439.5593493988. The cubic root of 340017349 is about 697.9650758519.

The spelling of 340017349 in words is "three hundred forty million, seventeen thousand, three hundred forty-nine".

Divisors: 1 7 23 161 2111909 14783363 48573907 340017349