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349241965 = 51720272
BaseRepresentation
bin10100110100010…
…000001001101101
3220100011022220121
4110310100021231
51203401220330
654353244541
711440336102
oct2464201155
9810138817
10349241965
1116a157726
1298b63751
135747c167
1434550aa9
15209d917a
hex14d1026d

349241965 has 12 divisors (see below), whose sum is σ = 443961756. Its totient is φ = 262828928.

The previous prime is 349241951. The next prime is 349242053. The reversal of 349241965 is 569142943.

It can be written as a sum of positive squares in 2 ways, for example, as 201327721 + 147914244 = 14189^2 + 12162^2 .

It is not a de Polignac number, because 349241965 - 25 = 349241933 is a prime.

It is a super-2 number, since 2×3492419652 = 243939900234122450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171282 + ... + 173308.

It is an arithmetic number, because the mean of its divisors is an integer number (36996813).

Almost surely, 2349241965 is an apocalyptic number.

It is an amenable number.

349241965 is a deficient number, since it is larger than the sum of its proper divisors (94719791).

349241965 is an frugal number, since it uses more digits than its factorization.

349241965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4076 (or 2049 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 349241965 is about 18688.0166149327. The cubic root of 349241965 is about 704.2207341202.

The spelling of 349241965 in words is "three hundred forty-nine million, two hundred forty-one thousand, nine hundred sixty-five".

Divisors: 1 5 17 85 2027 10135 34459 172295 4108729 20543645 69848393 349241965