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248120146 = 2234752859
BaseRepresentation
bin11101100101000…
…00001101010010
3122021212210212001
432302200031102
51002004321041
640342024214
76101662231
oct1662401522
9567783761
10248120146
1111806a37a
126b11806a
133c534b71
1424d4ab18
1516bb2131
hexeca0352

248120146 has 8 divisors (see below), whose sum is σ = 372345840. Its totient is φ = 124004868.

The previous prime is 248120141. The next prime is 248120153. The reversal of 248120146 is 641021842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2481201462 = 123127213702122632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (248120141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21736 + ... + 31123.

It is an arithmetic number, because the mean of its divisors is an integer number (46543230).

Almost surely, 2248120146 is an apocalyptic number.

248120146 is a deficient number, since it is larger than the sum of its proper divisors (124225694).

248120146 is a wasteful number, since it uses less digits than its factorization.

248120146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55208.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 248120146 is about 15751.8299254404. The cubic root of 248120146 is about 628.3775722491.

Adding to 248120146 its reverse (641021842), we get a palindrome (889141988).

The spelling of 248120146 in words is "two hundred forty-eight million, one hundred twenty thousand, one hundred forty-six".

Divisors: 1 2 2347 4694 52859 105718 124060073 248120146