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349254031 = 7411216913
BaseRepresentation
bin10100110100010…
…011000110001111
3220100011221110111
4110310103012033
51203402112111
654353420451
711440416220
oct2464230617
9810157414
10349254031
1116a1657a5
1298b6a727
13574847b9
1434555247
15209dca21
hex14d1318f

349254031 has 8 divisors (see below), whose sum is σ = 408883104. Its totient is φ = 292058880.

The previous prime is 349254019. The next prime is 349254079. The reversal of 349254031 is 130452943.

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 349254031 - 25 = 349253999 is a prime.

It is a super-2 number, since 2×3492540312 = 243956756339497922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 349253984 and 349254002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349054031) 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, 608170 + ... + 608743.

It is an arithmetic number, because the mean of its divisors is an integer number (51110388).

Almost surely, 2349254031 is an apocalyptic number.

349254031 is a deficient number, since it is larger than the sum of its proper divisors (59629073).

349254031 is a wasteful number, since it uses less digits than its factorization.

349254031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216961.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 349254031 is about 18688.3394393402. The cubic root of 349254031 is about 704.2288440939.

The spelling of 349254031 in words is "three hundred forty-nine million, two hundred fifty-four thousand, thirty-one".

Divisors: 1 7 41 287 1216913 8518391 49893433 349254031