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54128357 = 174374047
BaseRepresentation
bin1100111001111…
…0111011100101
310202212000010222
43032132323211
5102324101412
65212054125
71225040423
oct316367345
9122760128
1054128357
1128610488
1216164345
13b2a251a
147290113
154b43072
hex339eee5

54128357 has 8 divisors (see below), whose sum is σ = 58646016. Its totient is φ = 49758912.

The previous prime is 54128339. The next prime is 54128461. The reversal of 54128357 is 75382145.

It is a happy number.

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

It is not a de Polignac number, because 54128357 - 28 = 54128101 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 (54128257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36293 + ... + 37754.

It is an arithmetic number, because the mean of its divisors is an integer number (7330752).

Almost surely, 254128357 is an apocalyptic number.

It is an amenable number.

54128357 is a deficient number, since it is larger than the sum of its proper divisors (4517659).

54128357 is a wasteful number, since it uses less digits than its factorization.

54128357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74107.

The product of its digits is 33600, while the sum is 35.

The square root of 54128357 is about 7357.1976322510. The cubic root of 54128357 is about 378.2755588948.

The spelling of 54128357 in words is "fifty-four million, one hundred twenty-eight thousand, three hundred fifty-seven".

Divisors: 1 17 43 731 74047 1258799 3184021 54128357