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338120430 = 23537419727
BaseRepresentation
bin10100001001110…
…100111011101110
3212120020022000220
4110021310323232
51143024323210
653315032210
711243655564
oct2411647356
9776208026
10338120430
1116395097a
129529b666
1355086c7b
1432c97a34
151ea3dc70
hex14274eee

338120430 has 64 divisors (see below), whose sum is σ = 836559360. Its totient is φ = 87398784.

The previous prime is 338120423. The next prime is 338120479. The reversal of 338120430 is 34021833.

It is a super-2 number, since 2×3381204302 = 228650850366769800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 338120430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 464727 + ... + 465453.

It is an arithmetic number, because the mean of its divisors is an integer number (13071240).

Almost surely, 2338120430 is an apocalyptic number.

338120430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 338120430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (418279680).

338120430 is an abundant number, since it is smaller than the sum of its proper divisors (498438930).

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

338120430 is a wasteful number, since it uses less digits than its factorization.

338120430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 338120430 is about 18388.0512833742. The cubic root of 338120430 is about 696.6646980961.

The spelling of 338120430 in words is "three hundred thirty-eight million, one hundred twenty thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 419 555 727 838 1110 1257 1454 2095 2181 2514 3635 4190 4362 6285 7270 10905 12570 15503 21810 26899 31006 46509 53798 77515 80697 93018 134495 155030 161394 232545 268990 304613 403485 465090 609226 806970 913839 1523065 1827678 3046130 4569195 9138390 11270681 22541362 33812043 56353405 67624086 112706810 169060215 338120430