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55000248 = 2332291677
BaseRepresentation
bin1101000111001…
…1110010111000
310211111022011020
43101303302320
5103040001443
65242502440
71235331402
oct321636270
9124438136
1055000248
1129056556
1216504a20
13b519334
147439b72
154c66583
hex3473cb8

55000248 has 16 divisors (see below), whose sum is σ = 137500680. Its totient is φ = 18333408.

The previous prime is 55000243. The next prime is 55000259. The reversal of 55000248 is 84200055.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 2291677 = 55000248 / (5 + 5 + 0 + 0 + 0 + 2 + 4 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000243) 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, 1145815 + ... + 1145862.

Almost surely, 255000248 is an apocalyptic number.

It is an amenable number.

55000248 is an abundant number, since it is smaller than the sum of its proper divisors (82500432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55000248 is a wasteful number, since it uses less digits than its factorization.

55000248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291686 (or 2291682 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 55000248 is about 7416.2152072334. The cubic root of 55000248 is about 380.2958176706.

The spelling of 55000248 in words is "fifty-five million, two hundred forty-eight", and thus it is an aban number.

Divisors: 1 2 3 4 6 8 12 24 2291677 4583354 6875031 9166708 13750062 18333416 27500124 55000248