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248130128 = 2415508133
BaseRepresentation
bin11101100101000…
…10101001010000
3122021220022112202
432302202221100
51002010131003
640342142332
76102033311
oct1662425120
9567808482
10248130128
11118076924
126b1219a8
133c53957c
1424d50608
1516bb5088
hexeca2a50

248130128 has 10 divisors (see below), whose sum is σ = 480752154. Its totient is φ = 124065056.

The previous prime is 248130121. The next prime is 248130133. The reversal of 248130128 is 821031842.

It can be written as a sum of positive squares in only one way, i.e., 248125504 + 4624 = 15752^2 + 68^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 248130128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248130121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7754051 + ... + 7754082.

Almost surely, 2248130128 is an apocalyptic number.

It is an amenable number.

248130128 is a deficient number, since it is larger than the sum of its proper divisors (232622026).

248130128 is a wasteful number, since it uses less digits than its factorization.

248130128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15508141 (or 15508135 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 248130128 is about 15752.1467743289. The cubic root of 248130128 is about 628.3859987861.

The spelling of 248130128 in words is "two hundred forty-eight million, one hundred thirty thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 16 15508133 31016266 62032532 124065064 248130128