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351430426 = 21732093221
BaseRepresentation
bin10100111100100…
…110011100011010
3220111021111220201
4110330212130122
51204431233201
654512212414
711465052334
oct2474463432
9814244821
10351430426
11170411976
129983a10a
1357a672c9
1434960454
1520cbc801
hex14f2671a

351430426 has 16 divisors (see below), whose sum is σ = 558501480. Its totient is φ = 165276160.

The previous prime is 351430423. The next prime is 351430433. The reversal of 351430426 is 624034153.

It can be written as a sum of positive squares in 4 ways, for example, as 349727401 + 1703025 = 18701^2 + 1305^2 .

It is a junction number, because it is equal to n+sod(n) for n = 351430394 and 351430403.

It is not an unprimeable number, because it can be changed into a prime (351430423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107496 + ... + 110716.

Almost surely, 2351430426 is an apocalyptic number.

351430426 is a deficient number, since it is larger than the sum of its proper divisors (207071054).

351430426 is a wasteful number, since it uses less digits than its factorization.

351430426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6449.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 351430426 is about 18746.4776958233. The cubic root of 351430426 is about 705.6886291562.

Adding to 351430426 its reverse (624034153), we get a palindrome (975464579).

The spelling of 351430426 in words is "three hundred fifty-one million, four hundred thirty thousand, four hundred twenty-six".

Divisors: 1 2 17 34 3209 3221 6418 6442 54553 54757 109106 109514 10336189 20672378 175715213 351430426