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345368872 = 23172149381
BaseRepresentation
bin10100100101011…
…110100100101000
3220001212120000201
4110211132210220
51201403300442
654134241544
711362405222
oct2445364450
9801776021
10345368872
11167a51822
12977b62b4
13567242a4
1433c23412
15204c17b7
hex1495e928

345368872 has 24 divisors (see below), whose sum is σ = 687904110. Its totient is φ = 162525440.

The previous prime is 345368843. The next prime is 345368873. The reversal of 345368872 is 278863543.

It can be written as a sum of positive squares in 3 ways, for example, as 330730596 + 14638276 = 18186^2 + 3826^2 .

It is not an unprimeable number, because it can be changed into a prime (345368873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72379 + ... + 77002.

Almost surely, 2345368872 is an apocalyptic number.

It is an amenable number.

345368872 is a deficient number, since it is larger than the sum of its proper divisors (342535238).

345368872 is a wasteful number, since it uses less digits than its factorization.

345368872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149421 (or 149400 counting only the distinct ones).

The product of its digits is 967680, while the sum is 46.

The square root of 345368872 is about 18584.1026686789. The cubic root of 345368872 is about 701.6077819199.

The spelling of 345368872 in words is "three hundred forty-five million, three hundred sixty-eight thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 17 34 68 136 289 578 1156 2312 149381 298762 597524 1195048 2539477 5078954 10157908 20315816 43171109 86342218 172684436 345368872