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248445445 = 5415092381
BaseRepresentation
bin11101100111011…
…11101000000101
3122022111100002011
432303233220011
51002100223240
640353014221
76104515513
oct1663575005
9568440064
10248445445
11118271816
126b254371
133c619c51
1424dd34b3
1516c286ea
hexecefa05

248445445 has 16 divisors (see below), whose sum is σ = 306134640. Its totient is φ = 193446400.

The previous prime is 248445437. The next prime is 248445451. The reversal of 248445445 is 544544842.

It can be written as a sum of positive squares in 8 ways, for example, as 70543201 + 177902244 = 8399^2 + 13338^2 .

It is not a de Polignac number, because 248445445 - 23 = 248445437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 248445398 and 248445407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103155 + ... + 105535.

It is an arithmetic number, because the mean of its divisors is an integer number (19133415).

Almost surely, 2248445445 is an apocalyptic number.

It is an amenable number.

248445445 is a deficient number, since it is larger than the sum of its proper divisors (57689195).

248445445 is a wasteful number, since it uses less digits than its factorization.

248445445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936.

The product of its digits is 409600, while the sum is 40.

The square root of 248445445 is about 15762.1522959271. The cubic root of 248445445 is about 628.6520647117.

The spelling of 248445445 in words is "two hundred forty-eight million, four hundred forty-five thousand, four hundred forty-five".

Divisors: 1 5 41 205 509 2381 2545 11905 20869 97621 104345 488105 1211929 6059645 49689089 248445445