Search a number
-
+
13230020250 = 233536073229
BaseRepresentation
bin11000101001001001…
…00001011010011010
31021011000121122221000
430110210201122122
5204043341122000
610024445125430
7645565213416
oct142444413232
937130548830
1013230020250
11567a002037
122692859876
13132ac3a265
148d7123d46
1552673b000
hex31492169a

13230020250 has 128 divisors (see below), whose sum is σ = 36763084800. Its totient is φ = 3521102400.

The previous prime is 13230020249. The next prime is 13230020281. The reversal of 13230020250 is 5202003231.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4095636 + ... + 4098864.

It is an arithmetic number, because the mean of its divisors is an integer number (287211600).

Almost surely, 213230020250 is an apocalyptic number.

13230020250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13230020250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18381542400).

13230020250 is an abundant number, since it is smaller than the sum of its proper divisors (23533064550).

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

13230020250 is a wasteful number, since it uses less digits than its factorization.

13230020250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862 (or 3846 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 13230020250 its reverse (5202003231), we get a palindrome (18432023481).

The spelling of 13230020250 in words is "thirteen billion, two hundred thirty million, twenty thousand, two hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 90 125 135 150 225 250 270 375 450 607 675 750 1125 1214 1350 1821 2250 3035 3229 3375 3642 5463 6070 6458 6750 9105 9687 10926 15175 16145 16389 18210 19374 27315 29061 30350 32290 32778 45525 48435 54630 58122 75875 80725 81945 87183 91050 96870 136575 145305 151750 161450 163890 174366 227625 242175 273150 290610 403625 409725 435915 455250 484350 682875 726525 807250 819450 871830 1210875 1365750 1453050 1960003 2048625 2179575 2421750 3632625 3920006 4097250 4359150 5880009 7265250 9800015 10897875 11760018 17640027 19600030 21795750 29400045 35280054 49000075 52920081 58800090 88200135 98000150 105840162 147000225 176400270 245000375 264600405 294000450 441000675 490000750 529200810 735001125 882001350 1323002025 1470002250 2205003375 2646004050 4410006750 6615010125 13230020250