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245033189 = 17103139939
BaseRepresentation
bin11101001101011…
…10100011100101
3122002001222100022
432212232203211
51000212030224
640151524525
76033514322
oct1646564345
9562058308
10245033189
11116351075
126a089745
133b9c3a6b
1424785b49
15167a265e
hexe9ae8e5

245033189 has 8 divisors (see below), whose sum is σ = 261967680. Its totient is φ = 228378816.

The previous prime is 245033183. The next prime is 245033297. The reversal of 245033189 is 981330542.

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

It is a de Polignac number, because none of the positive numbers 2k-245033189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245033183) 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, 68219 + ... + 71720.

It is an arithmetic number, because the mean of its divisors is an integer number (32745960).

Almost surely, 2245033189 is an apocalyptic number.

It is an amenable number.

245033189 is a deficient number, since it is larger than the sum of its proper divisors (16934491).

245033189 is a wasteful number, since it uses less digits than its factorization.

245033189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140059.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 245033189 is about 15653.5359903122. The cubic root of 245033189 is about 625.7607283056.

The spelling of 245033189 in words is "two hundred forty-five million, thirty-three thousand, one hundred eighty-nine".

Divisors: 1 17 103 1751 139939 2378963 14413717 245033189