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145033215 = 359668881
BaseRepresentation
bin10001010010100…
…00011111111111
3101002220110011120
420221100133333
5244112030330
622220322023
73410522235
oct1051203777
9332813146
10145033215
117495a668
12406a3313
1324080292
1415394955
15caecc10
hex8a507ff

145033215 has 8 divisors (see below), whose sum is σ = 232053168. Its totient is φ = 77351040.

The previous prime is 145033199. The next prime is 145033219. The reversal of 145033215 is 512330541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145033215 - 24 = 145033199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145033219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4834426 + ... + 4834455.

It is an arithmetic number, because the mean of its divisors is an integer number (29006646).

Almost surely, 2145033215 is an apocalyptic number.

145033215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145033215 is a deficient number, since it is larger than the sum of its proper divisors (87019953).

145033215 is an equidigital number, since it uses as much as digits as its factorization.

145033215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9668889.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 145033215 is about 12042.9736776263. The cubic root of 145033215 is about 525.3988986513.

Adding to 145033215 its reverse (512330541), we get a palindrome (657363756).

The spelling of 145033215 in words is "one hundred forty-five million, thirty-three thousand, two hundred fifteen".

Divisors: 1 3 5 15 9668881 29006643 48344405 145033215