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248995485 = 3351844411
BaseRepresentation
bin11101101011101…
…01111010011101
3122100112021121000
432311311322131
51002220323420
640412500513
76112266234
oct1665657235
9570467530
10248995485
11118607aa2
126b47a739
133c78040b
14250d7b1b
1516cd6690
hexed75e9d

248995485 has 16 divisors (see below), whose sum is σ = 442658880. Its totient is φ = 132797520.

The previous prime is 248995477. The next prime is 248995507. The reversal of 248995485 is 584599842.

It is a happy number.

248995485 is a `hidden beast` number, since 2 + 4 + 8 + 99 + 548 + 5 = 666.

It is not a de Polignac number, because 248995485 - 23 = 248995477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 922071 + ... + 922340.

It is an arithmetic number, because the mean of its divisors is an integer number (27666180).

Almost surely, 2248995485 is an apocalyptic number.

It is an amenable number.

248995485 is a deficient number, since it is larger than the sum of its proper divisors (193663395).

248995485 is a wasteful number, since it uses less digits than its factorization.

248995485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844425 (or 1844419 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The square root of 248995485 is about 15779.5907741614. The cubic root of 248995485 is about 629.1156526235.

The spelling of 248995485 in words is "two hundred forty-eight million, nine hundred ninety-five thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 27 45 135 1844411 5533233 9222055 16599699 27666165 49799097 82998495 248995485