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16234920 = 23325133469
BaseRepresentation
bin111101111011…
…100110101000
31010112211010100
4331323212220
513124004140
61335545400
7254665062
oct75734650
933484110
1016234920
119189599
12552b260
133495780
142228732
15165a530
hexf7b9a8

16234920 has 96 divisors (see below), whose sum is σ = 56838600. Its totient is φ = 3995136.

The previous prime is 16234919. The next prime is 16234927. The reversal of 16234920 is 2943261.

It can be written as a sum of positive squares in 4 ways, for example, as 5225796 + 11009124 = 2286^2 + 3318^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16234927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2946 + ... + 6414.

Almost surely, 216234920 is an apocalyptic number.

16234920 is a gapful number since it is divisible by the number (10) 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 16234920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28419300).

16234920 is an abundant number, since it is smaller than the sum of its proper divisors (40603680).

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

16234920 is a wasteful number, since it uses less digits than its factorization.

16234920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499 (or 3492 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 16234920 is about 4029.2579962072. The cubic root of 16234920 is about 253.2114757121.

The spelling of 16234920 in words is "sixteen million, two hundred thirty-four thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 30 36 39 40 45 52 60 65 72 78 90 104 117 120 130 156 180 195 234 260 312 360 390 468 520 585 780 936 1170 1560 2340 3469 4680 6938 10407 13876 17345 20814 27752 31221 34690 41628 45097 52035 62442 69380 83256 90194 104070 124884 135291 138760 156105 180388 208140 225485 249768 270582 312210 360776 405873 416280 450970 541164 624420 676455 811746 901940 1082328 1248840 1352910 1623492 1803880 2029365 2705820 3246984 4058730 5411640 8117460 16234920