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55001768 = 236875221
BaseRepresentation
bin1101000111010…
…0001010101000
310211111101020112
43101310022220
5103040024033
65242513452
71235336003
oct321641250
9124441215
1055001768
1129057708
1216505888
13b519c33
14743a53a
154c66c48
hex34742a8

55001768 has 8 divisors (see below), whose sum is σ = 103128330. Its totient is φ = 27500880.

The previous prime is 55001761. The next prime is 55001819. The reversal of 55001768 is 86710055.

It can be written as a sum of positive squares in only one way, i.e., 42484324 + 12517444 = 6518^2 + 3538^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (55001761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3437603 + ... + 3437618.

Almost surely, 255001768 is an apocalyptic number.

It is an amenable number.

55001768 is a deficient number, since it is larger than the sum of its proper divisors (48126562).

55001768 is a wasteful number, since it uses less digits than its factorization.

55001768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6875227 (or 6875223 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 55001768 is about 7416.3176846734. The cubic root of 55001768 is about 380.2993209537.

The spelling of 55001768 in words is "fifty-five million, one thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 6875221 13750442 27500884 55001768