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55000384 = 26859381
BaseRepresentation
bin1101000111001…
…1110101000000
310211111022100021
43101303311000
5103040003014
65242503224
71235331655
oct321636500
9124438307
1055000384
112905666a
1216504b14
13b51940a
147439c2c
154c66624
hex3473d40

55000384 has 14 divisors (see below), whose sum is σ = 109141514. Its totient is φ = 27500160.

The previous prime is 55000369. The next prime is 55000403. The reversal of 55000384 is 48300055.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 45265984 + 9734400 = 6728^2 + 3120^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 429627 + ... + 429754.

Almost surely, 255000384 is an apocalyptic number.

It is an amenable number.

55000384 is a deficient number, since it is larger than the sum of its proper divisors (54141130).

55000384 is an equidigital number, since it uses as much as digits as its factorization.

55000384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859393 (or 859383 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 55000384 is about 7416.2243763252. The cubic root of 55000384 is about 380.2961311248.

The spelling of 55000384 in words is "fifty-five million, three hundred eighty-four", and thus it is an aban number.

Divisors: 1 2 4 8 16 32 64 859381 1718762 3437524 6875048 13750096 27500192 55000384