Search a number
-
+
745233210 = 23451396619
BaseRepresentation
bin101100011010110…
…101101100111010
31220221021202210000
4230122311230322
53011234430320
6201540533430
724316243401
oct5432655472
91827252700
10745233210
11352734817
121896b1276
13bb518bc7
1470d90638
1545659c90
hex2c6b5b3a

745233210 has 80 divisors (see below), whose sum is σ = 2018570400. Its totient is φ = 197269344.

The previous prime is 745233191. The next prime is 745233241. The reversal of 745233210 is 12332547.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 109281 + ... + 115899.

It is an arithmetic number, because the mean of its divisors is an integer number (25232130).

Almost surely, 2745233210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745233210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1009285200).

745233210 is an abundant number, since it is smaller than the sum of its proper divisors (1273337190).

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

745233210 is a wasteful number, since it uses less digits than its factorization.

745233210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6777 (or 6768 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 745233210 is about 27298.9598702954. The cubic root of 745233210 is about 906.6313524007.

Adding to 745233210 its reverse (12332547), we get a palindrome (757565757).

The spelling of 745233210 in words is "seven hundred forty-five million, two hundred thirty-three thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 139 162 270 278 405 417 695 810 834 1251 1390 2085 2502 3753 4170 6255 6619 7506 11259 12510 13238 18765 19857 22518 33095 37530 39714 56295 59571 66190 99285 112590 119142 178713 198570 297855 357426 536139 595710 893565 920041 1072278 1787130 1840082 2680695 2760123 4600205 5361390 5520246 8280369 9200410 13800615 16560738 24841107 27601230 41401845 49682214 74523321 82803690 124205535 149046642 248411070 372616605 745233210