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145237050 = 23452747109
BaseRepresentation
bin10001010100000…
…10010000111010
3101010021210210000
420222002100322
5244140041200
622224533430
73412331430
oct1052022072
9333253700
10145237050
1174a89822
1240781276
1324121caa
1415408d50
15cb3d300
hex8a8243a

145237050 has 240 divisors, whose sum is σ = 475326720. Its totient is φ = 32192640.

The previous prime is 145237049. The next prime is 145237093. The reversal of 145237050 is 50732541.

It is a happy number.

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 polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1332396 + ... + 1332504.

It is an arithmetic number, because the mean of its divisors is an integer number (1980528).

Almost surely, 2145237050 is an apocalyptic number.

145237050 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 145237050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237663360).

145237050 is an abundant number, since it is smaller than the sum of its proper divisors (330089670).

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

145237050 is a wasteful number, since it uses less digits than its factorization.

145237050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 145237050 is about 12051.4335246891. The cubic root of 145237050 is about 525.6449217251.

Adding to 145237050 its reverse (50732541), we get a palindrome (195969591).

The spelling of 145237050 in words is "one hundred forty-five million, two hundred thirty-seven thousand, fifty".