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245394213 = 3760710753
BaseRepresentation
bin11101010000001…
…10101100100101
3122002202022120120
432220012230211
51000310103323
640203352153
76036550011
oct1650065445
9562668516
10245394213
11116578339
126a222659
133babc19c
142483b541
15168245e3
hexea06b25

245394213 has 8 divisors (see below), whose sum is σ = 327265728. Its totient is φ = 163559424.

The previous prime is 245394211. The next prime is 245394229. The reversal of 245394213 is 312493542.

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

It is not a de Polignac number, because 245394213 - 21 = 245394211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245394211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17445 + ... + 28197.

It is an arithmetic number, because the mean of its divisors is an integer number (40908216).

Almost surely, 2245394213 is an apocalyptic number.

It is an amenable number.

245394213 is a deficient number, since it is larger than the sum of its proper divisors (81871515).

245394213 is a wasteful number, since it uses less digits than its factorization.

245394213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18363.

The product of its digits is 25920, while the sum is 33.

The square root of 245394213 is about 15665.0634534304. The cubic root of 245394213 is about 626.0679027215.

The spelling of 245394213 in words is "two hundred forty-five million, three hundred ninety-four thousand, two hundred thirteen".

Divisors: 1 3 7607 10753 22821 32259 81798071 245394213