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54993057 = 372618717
BaseRepresentation
bin1101000111001…
…0000010100001
310211110221021220
43101302002201
5103034234212
65242405253
71235301420
oct321620241
9124427256
1054993057
1129051109
1216500829
13b515c92
1474372b7
154c6438c
hex34720a1

54993057 has 8 divisors (see below), whose sum is σ = 83798976. Its totient is φ = 31424592.

The previous prime is 54993031. The next prime is 54993073. The reversal of 54993057 is 75039945.

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

It is not a de Polignac number, because 54993057 - 27 = 54992929 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54993097) 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, 1309338 + ... + 1309379.

It is an arithmetic number, because the mean of its divisors is an integer number (10474872).

Almost surely, 254993057 is an apocalyptic number.

It is an amenable number.

54993057 is a deficient number, since it is larger than the sum of its proper divisors (28805919).

54993057 is a wasteful number, since it uses less digits than its factorization.

54993057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618727.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 54993057 is about 7415.7303753575. The cubic root of 54993057 is about 380.2792430397.

The spelling of 54993057 in words is "fifty-four million, nine hundred ninety-three thousand, fifty-seven".

Divisors: 1 3 7 21 2618717 7856151 18331019 54993057