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343490797 = 131719179457
BaseRepresentation
bin10100011110010…
…100000011101101
3212221100010210101
4110132110003231
51200413201142
654030111101
711340423616
oct2436240355
9787303711
10343490797
111669897a1
129704b491
13562174c0
1433894c0d
15202500b7
hex147940ed

343490797 has 32 divisors (see below), whose sum is σ = 415497600. Its totient is φ = 280516608.

The previous prime is 343490773. The next prime is 343490813. The reversal of 343490797 is 797094343.

It is a happy number.

It is not a de Polignac number, because 343490797 - 27 = 343490669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343490737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 751393 + ... + 751849.

It is an arithmetic number, because the mean of its divisors is an integer number (12984300).

Almost surely, 2343490797 is an apocalyptic number.

It is an amenable number.

343490797 is a deficient number, since it is larger than the sum of its proper divisors (72006803).

343490797 is a wasteful number, since it uses less digits than its factorization.

343490797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 571536, while the sum is 46.

The square root of 343490797 is about 18533.5047144354. The cubic root of 343490797 is about 700.3337163897. Note that the first 3 decimals are identical.

The spelling of 343490797 in words is "three hundred forty-three million, four hundred ninety thousand, seven hundred ninety-seven".

Divisors: 1 13 17 19 179 221 247 323 457 2327 3043 3401 4199 5941 7769 8683 39559 44213 57817 81803 100997 112879 147611 751621 1063439 1390651 1554257 1918943 18078463 20205341 26422369 343490797