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248505465 = 35131967073
BaseRepresentation
bin11101100111111…
…10010001111001
3122022121101102010
432303332101321
51002104133330
640354200133
76105155505
oct1663762171
9568541363
10248505465
1111830291a
126b283049
133c63b370
142500b305
1516c3b3b0
hexecfe479

248505465 has 32 divisors (see below), whose sum is σ = 450737280. Its totient is φ = 115900416.

The previous prime is 248505457. The next prime is 248505511. The reversal of 248505465 is 564505842.

It is not a de Polignac number, because 248505465 - 23 = 248505457 is a prime.

It is a super-2 number, since 2×2485054652 = 123509932269732450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29832 + ... + 37241.

It is an arithmetic number, because the mean of its divisors is an integer number (14085540).

Almost surely, 2248505465 is an apocalyptic number.

It is an amenable number.

248505465 is a deficient number, since it is larger than the sum of its proper divisors (202231815).

248505465 is a wasteful number, since it uses less digits than its factorization.

248505465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67113.

The product of its (nonzero) digits is 192000, while the sum is 39.

The square root of 248505465 is about 15764.0561087558. The cubic root of 248505465 is about 628.7026843543.

The spelling of 248505465 in words is "two hundred forty-eight million, five hundred five thousand, four hundred sixty-five".

Divisors: 1 3 5 13 15 19 39 57 65 95 195 247 285 741 1235 3705 67073 201219 335365 871949 1006095 1274387 2615847 3823161 4359745 6371935 13079235 16567031 19115805 49701093 82835155 248505465