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54455144 = 236806893
BaseRepresentation
bin1100111110111…
…0101101101000
310210110121102012
43033232231220
5102420031034
65223055052
71230601232
oct317565550
9123417365
1054455144
1128813a57
12162a1488
13b3881a3
147337252
154ba9cce
hex33eeb68

54455144 has 8 divisors (see below), whose sum is σ = 102103410. Its totient is φ = 27227568.

The previous prime is 54455123. The next prime is 54455161. The reversal of 54455144 is 44155445.

It can be written as a sum of positive squares in only one way, i.e., 37332100 + 17123044 = 6110^2 + 4138^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 54455144.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3403439 + ... + 3403454.

Almost surely, 254455144 is an apocalyptic number.

It is an amenable number.

54455144 is a deficient number, since it is larger than the sum of its proper divisors (47648266).

54455144 is a wasteful number, since it uses less digits than its factorization.

54455144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806899 (or 6806895 counting only the distinct ones).

The product of its digits is 32000, while the sum is 32.

The square root of 54455144 is about 7379.3728730835. The cubic root of 54455144 is about 379.0352814416.

The spelling of 54455144 in words is "fifty-four million, four hundred fifty-five thousand, one hundred forty-four".

Divisors: 1 2 4 8 6806893 13613786 27227572 54455144