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57222141 = 319074047
BaseRepresentation
bin1101101001001…
…0001111111101
310222200012000120
43122102033331
5104122102031
65402245153
71263244254
oct332221775
9128605016
1057222141
112a333929
12171b67b9
13bb16772
14785779b
155054a96
hex36923fd

57222141 has 4 divisors (see below), whose sum is σ = 76296192. Its totient is φ = 38148092.

The previous prime is 57222089. The next prime is 57222157. The reversal of 57222141 is 14122275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57222141 - 218 = 56959997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57222041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9537021 + ... + 9537026.

It is an arithmetic number, because the mean of its divisors is an integer number (19074048).

Almost surely, 257222141 is an apocalyptic number.

It is an amenable number.

57222141 is a deficient number, since it is larger than the sum of its proper divisors (19074051).

57222141 is a wasteful number, since it uses less digits than its factorization.

57222141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19074050.

The product of its digits is 1120, while the sum is 24.

The square root of 57222141 is about 7564.5317766535. The cubic root of 57222141 is about 385.3494123676.

The spelling of 57222141 in words is "fifty-seven million, two hundred twenty-two thousand, one hundred forty-one".

Divisors: 1 3 19074047 57222141