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145241205 = 35231972137
BaseRepresentation
bin10001010100000…
…11010001110101
3101010022000110220
420222003101311
5244140204310
622225004553
73412346514
oct1052032165
9333260426
10145241205
1174a9195a
1240783759
1324123b55
141540a67b
15cb3e670
hex8a83475

145241205 has 32 divisors (see below), whose sum is σ = 243834624. Its totient is φ = 73683456.

The previous prime is 145241167. The next prime is 145241207. The reversal of 145241205 is 502142541.

It is not a de Polignac number, because 145241205 - 210 = 145240181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145241207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66897 + ... + 69033.

It is an arithmetic number, because the mean of its divisors is an integer number (7619832).

Almost surely, 2145241205 is an apocalyptic number.

145241205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145241205 is a deficient number, since it is larger than the sum of its proper divisors (98593419).

145241205 is a wasteful number, since it uses less digits than its factorization.

145241205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145241205 is about 12051.6059095873. The cubic root of 145241205 is about 525.6499342978.

Adding to 145241205 its reverse (502142541), we get a palindrome (647383746).

The spelling of 145241205 in words is "one hundred forty-five million, two hundred forty-one thousand, two hundred five".

Divisors: 1 3 5 15 23 69 115 197 345 591 985 2137 2955 4531 6411 10685 13593 22655 32055 49151 67965 147453 245755 420989 737265 1262967 2104945 6314835 9682747 29048241 48413735 145241205