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248428513 = 3117414603
BaseRepresentation
bin11101100111010…
…11011111100001
3122022110110212001
432303223133201
51002044203023
640352404001
76104415244
oct1663533741
9568413761
10248428513
11118260023
126b246601
133c612328
1424dcb25b
1516c236ad
hexeceb7e1

248428513 has 8 divisors (see below), whose sum is σ = 256645376. Its totient is φ = 240224400.

The previous prime is 248428507. The next prime is 248428541. The reversal of 248428513 is 315824842.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 248428513 - 29 = 248428001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248458513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51670 + ... + 56272.

It is an arithmetic number, because the mean of its divisors is an integer number (32080672).

Almost surely, 2248428513 is an apocalyptic number.

It is an amenable number.

248428513 is a deficient number, since it is larger than the sum of its proper divisors (8216863).

248428513 is a wasteful number, since it uses less digits than its factorization.

248428513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6375.

The product of its digits is 61440, while the sum is 37.

The square root of 248428513 is about 15761.6151773859. The cubic root of 248428513 is about 628.6377831343.

The spelling of 248428513 in words is "two hundred forty-eight million, four hundred twenty-eight thousand, five hundred thirteen".

Divisors: 1 31 1741 4603 53971 142693 8013823 248428513