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54446021 = 729268207
BaseRepresentation
bin1100111110110…
…0011111000101
310210110010220022
43033230133011
5102414233041
65222544525
71230532520
oct317543705
9123403808
1054446021
1128808113
1216298145
13b383ca6
147333bb7
154ba724b
hex33ec7c5

54446021 has 8 divisors (see below), whose sum is σ = 64369920. Its totient is φ = 45058608.

The previous prime is 54445973. The next prime is 54446023. The reversal of 54446021 is 12064445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54446021 - 214 = 54429637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54446023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133901 + ... + 134306.

It is an arithmetic number, because the mean of its divisors is an integer number (8046240).

Almost surely, 254446021 is an apocalyptic number.

It is an amenable number.

54446021 is a deficient number, since it is larger than the sum of its proper divisors (9923899).

54446021 is a wasteful number, since it uses less digits than its factorization.

54446021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268243.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 54446021 is about 7378.7547052331. The cubic root of 54446021 is about 379.0141133649.

The spelling of 54446021 in words is "fifty-four million, four hundred forty-six thousand, twenty-one".

Divisors: 1 7 29 203 268207 1877449 7778003 54446021