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354344040 = 233252933941
BaseRepresentation
bin10101000111101…
…101110001101000
3220200202112122100
4111013231301220
51211203002130
655054453400
711531606001
oct2507556150
9820675570
10354344040
11172021a16
129a804260
135854753b
14350bc1a8
1521195c60
hex151edc68

354344040 has 96 divisors (see below), whose sum is σ = 1191364200. Its totient is φ = 91230720.

The previous prime is 354344033. The next prime is 354344063. The reversal of 354344040 is 40443453.

It can be written as a sum of positive squares in 4 ways, for example, as 286083396 + 68260644 = 16914^2 + 8262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 354343995 and 354344013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6531 + ... + 27410.

Almost surely, 2354344040 is an apocalyptic number.

354344040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 354344040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595682100).

354344040 is an abundant number, since it is smaller than the sum of its proper divisors (837020160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

354344040 is a wasteful number, since it uses less digits than its factorization.

354344040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33987 (or 33980 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 27.

The square root of 354344040 is about 18824.0282617722. The cubic root of 354344040 is about 707.6334883619.

Adding to 354344040 its reverse (40443453), we get a palindrome (394787493).

The spelling of 354344040 in words is "three hundred fifty-four million, three hundred forty-four thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 29 30 36 40 45 58 60 72 87 90 116 120 145 174 180 232 261 290 348 360 435 522 580 696 870 1044 1160 1305 1740 2088 2610 3480 5220 10440 33941 67882 101823 135764 169705 203646 271528 305469 339410 407292 509115 610938 678820 814584 984289 1018230 1221876 1357640 1527345 1968578 2036460 2443752 2952867 3054690 3937156 4072920 4921445 5905734 6109380 7874312 8858601 9842890 11811468 12218760 14764335 17717202 19685780 23622936 29528670 35434404 39371560 44293005 59057340 70868808 88586010 118114680 177172020 354344040