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145213200 = 2432521119193
BaseRepresentation
bin10001010011111…
…00011100010000
3101010020121001200
420221330130100
5244133310300
622224231200
73412202046
oct1051743420
9333217050
10145213200
1174a72910
124076b500
1324114192
1415400396
15cb36200
hex8a7c710

145213200 has 360 divisors, whose sum is σ = 581674080. Its totient is φ = 33177600.

The previous prime is 145213199. The next prime is 145213291. The reversal of 145213200 is 2312541.

145213200 is a `hidden beast` number, since 1 + 452 + 13 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 752304 + ... + 752496.

Almost surely, 2145213200 is an apocalyptic number.

145213200 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 145213200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290837040).

145213200 is an abundant number, since it is smaller than the sum of its proper divisors (436460880).

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

145213200 is a wasteful number, since it uses less digits than its factorization.

145213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 145213200 is about 12050.4439752235. The cubic root of 145213200 is about 525.6161473463.

Adding to 145213200 its reverse (2312541), we get a palindrome (147525741).

The spelling of 145213200 in words is "one hundred forty-five million, two hundred thirteen thousand, two hundred".