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349350969 = 31117622729
BaseRepresentation
bin10100110100101…
…010110000111001
3220100100212102210
4110310222300321
51203413212334
654355445333
711441301642
oct2464526071
9810325383
10349350969
1116a221610
1298bb6849
13574b9966
143457c6c9
1520a0b5e9
hex14d2ac39

349350969 has 16 divisors (see below), whose sum is σ = 538038720. Its totient is φ = 199272960.

The previous prime is 349350941. The next prime is 349350973. The reversal of 349350969 is 969053943.

It is a happy number.

It is not a de Polignac number, because 349350969 - 212 = 349346873 is a prime.

It is a super-2 number, since 2×3493509692 = 244092199082477922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (349351969) 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, 310804 + ... + 311925.

It is an arithmetic number, because the mean of its divisors is an integer number (33627420).

Almost surely, 2349350969 is an apocalyptic number.

It is an amenable number.

349350969 is a deficient number, since it is larger than the sum of its proper divisors (188687751).

349350969 is a wasteful number, since it uses less digits than its factorization.

349350969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622760.

The product of its (nonzero) digits is 787320, while the sum is 48.

The square root of 349350969 is about 18690.9328017625. The cubic root of 349350969 is about 704.2939926817.

The spelling of 349350969 in words is "three hundred forty-nine million, three hundred fifty thousand, nine hundred sixty-nine".

Divisors: 1 3 11 17 33 51 187 561 622729 1868187 6850019 10586393 20550057 31759179 116450323 349350969