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248320245 = 3546735449
BaseRepresentation
bin11101100110100…
…01000011110101
3122022020222100010
432303101003311
51002032221440
640350210433
76103454505
oct1663210365
9568228303
10248320245
11118196748
126b1b3a19
133c5a4c74
1424d9da05
1516c01580
hexecd10f5

248320245 has 16 divisors (see below), whose sum is σ = 398174400. Its totient is φ = 132150144.

The previous prime is 248320201. The next prime is 248320249. The reversal of 248320245 is 542023842.

It is not a de Polignac number, because 248320245 - 27 = 248320117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248320249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10720 + ... + 24729.

It is an arithmetic number, because the mean of its divisors is an integer number (24885900).

Almost surely, 2248320245 is an apocalyptic number.

It is an amenable number.

248320245 is a deficient number, since it is larger than the sum of its proper divisors (149854155).

248320245 is a wasteful number, since it uses less digits than its factorization.

248320245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35924.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 248320245 is about 15758.1802566159. The cubic root of 248320245 is about 628.5464473420.

The spelling of 248320245 in words is "two hundred forty-eight million, three hundred twenty thousand, two hundred forty-five".

Divisors: 1 3 5 15 467 1401 2335 7005 35449 106347 177245 531735 16554683 49664049 82773415 248320245