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57093121 = 4310911217
BaseRepresentation
bin1101100111001…
…0110000000001
310222102122001001
43121302300001
5104103434441
65355412001
71262166151
oct331626001
9128378031
1057093121
112a2559a8
1217154001
13ba9cb17
147822761
15502b731
hex3672c01

57093121 has 8 divisors (see below), whose sum is σ = 58522464. Its totient is φ = 55668480.

The previous prime is 57093079. The next prime is 57093131. The reversal of 57093121 is 12139075.

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

It is a cyclic number.

It is not a de Polignac number, because 57093121 - 217 = 56962049 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57093121.

It is not an unprimeable number, because it can be changed into a prime (57093131) 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 in 7 ways as a sum of consecutive naturals, for example, 46305 + ... + 47521.

It is an arithmetic number, because the mean of its divisors is an integer number (7315308).

Almost surely, 257093121 is an apocalyptic number.

It is an amenable number.

57093121 is a deficient number, since it is larger than the sum of its proper divisors (1429343).

57093121 is a wasteful number, since it uses less digits than its factorization.

57093121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 57093121 is about 7555.9990074113. Note that the first 3 decimals coincide. The cubic root of 57093121 is about 385.0595758708.

The spelling of 57093121 in words is "fifty-seven million, ninety-three thousand, one hundred twenty-one".

Divisors: 1 43 1091 1217 46913 52331 1327747 57093121