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349112907 = 321113271261
BaseRepresentation
bin10100110011110…
…000101001001011
3220022220202212200
4110303300221023
51203333103112
654350411243
711436260613
oct2463605113
9808822780
10349112907
1116a079770
1298b00b23
13574354b0
1434519a43
15209b0cdc
hex14cf0a4b

349112907 has 24 divisors (see below), whose sum is σ = 592436208. Its totient is φ = 195307200.

The previous prime is 349112903. The next prime is 349112921. The reversal of 349112907 is 709211943.

It is not a de Polignac number, because 349112907 - 22 = 349112903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (349112903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134344 + ... + 136917.

It is an arithmetic number, because the mean of its divisors is an integer number (24684842).

Almost surely, 2349112907 is an apocalyptic number.

349112907 is a deficient number, since it is larger than the sum of its proper divisors (243323301).

349112907 is a wasteful number, since it uses less digits than its factorization.

349112907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271291 (or 271288 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 349112907 is about 18684.5633344748. The cubic root of 349112907 is about 704.1339781114.

The spelling of 349112907 in words is "three hundred forty-nine million, one hundred twelve thousand, nine hundred seven".

Divisors: 1 3 9 11 13 33 39 99 117 143 429 1287 271261 813783 2441349 2983871 3526393 8951613 10579179 26854839 31737537 38790323 116370969 349112907