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201230250 = 23531320639
BaseRepresentation
bin10111111111010…
…00011110101010
3112000122120000020
423333220132222
5403003332000
631545021310
74662300054
oct1377503652
9460576006
10201230250
11a36532a1
1257484836
13328c8270
141ca228d4
15129edba0
hexbfe87aa

201230250 has 64 divisors (see below), whose sum is σ = 540933120. Its totient is φ = 49531200.

The previous prime is 201230219. The next prime is 201230291. The reversal of 201230250 is 52032102.

It is a super-2 number, since 2×2012302502 = 80987227030125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 570 + ... + 20069.

It is an arithmetic number, because the mean of its divisors is an integer number (8452080).

Almost surely, 2201230250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201230250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270466560).

201230250 is an abundant number, since it is smaller than the sum of its proper divisors (339702870).

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

201230250 is a wasteful number, since it uses less digits than its factorization.

201230250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20672 (or 20662 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 201230250 is about 14185.5648459975. The cubic root of 201230250 is about 586.0001883151. Note that the first 3 decimals are identical.

Adding to 201230250 its reverse (52032102), we get a palindrome (253262352).

The spelling of 201230250 in words is "two hundred one million, two hundred thirty thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 125 130 150 195 250 325 375 390 650 750 975 1625 1950 3250 4875 9750 20639 41278 61917 103195 123834 206390 268307 309585 515975 536614 619170 804921 1031950 1341535 1547925 1609842 2579875 2683070 3095850 4024605 5159750 6707675 7739625 8049210 13415350 15479250 20123025 33538375 40246050 67076750 100615125 201230250