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248246090 = 2529856021
BaseRepresentation
bin11101100101111…
…10111101001010
3122022010012121122
432302332331022
51002022333330
640344435242
76103025351
oct1662767512
9568105548
10248246090
11118145a64
126b178b22
133c57a2a1
1424d80998
1516bd95e5
hexecbef4a

248246090 has 16 divisors (see below), whose sum is σ = 462251880. Its totient is φ = 95874240.

The previous prime is 248246081. The next prime is 248246113. The reversal of 248246090 is 90642842.

It can be written as a sum of positive squares in 4 ways, for example, as 192460129 + 55785961 = 13873^2 + 7469^2 .

It is a super-2 number, since 2×2482460902 = 123252242400576200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 248246090.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427721 + ... + 428300.

Almost surely, 2248246090 is an apocalyptic number.

248246090 is a deficient number, since it is larger than the sum of its proper divisors (214005790).

248246090 is a wasteful number, since it uses less digits than its factorization.

248246090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856057.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 248246090 is about 15755.8271760006. The cubic root of 248246090 is about 628.4838742425.

The spelling of 248246090 in words is "two hundred forty-eight million, two hundred forty-six thousand, ninety".

Divisors: 1 2 5 10 29 58 145 290 856021 1712042 4280105 8560210 24824609 49649218 124123045 248246090