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344872490 = 25108731727
BaseRepresentation
bin10100100011100…
…101011000101010
3220000221100010012
4110203211120222
51201241404430
654115451522
711355240104
oct2443453052
9800840105
10344872490
11167742896
12975b6ba2
13565ac381
1433b34574
1520424695
hex148e562a

344872490 has 16 divisors (see below), whose sum is σ = 621361152. Its totient is φ = 137817744.

The previous prime is 344872487. The next prime is 344872499. The reversal of 344872490 is 94278443.

It is a super-3 number, since 3×3448724903 (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (344872499) 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 7 ways as a sum of consecutive naturals, for example, 4994 + ... + 26733.

It is an arithmetic number, because the mean of its divisors is an integer number (38835072).

Almost surely, 2344872490 is an apocalyptic number.

344872490 is a deficient number, since it is larger than the sum of its proper divisors (276488662).

344872490 is a wasteful number, since it uses less digits than its factorization.

344872490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32821.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 344872490 is about 18570.7428499778. The cubic root of 344872490 is about 701.2714917637.

The spelling of 344872490 in words is "three hundred forty-four million, eight hundred seventy-two thousand, four hundred ninety".

Divisors: 1 2 5 10 1087 2174 5435 10870 31727 63454 158635 317270 34487249 68974498 172436245 344872490