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57109422 = 239518237
BaseRepresentation
bin1101100111011…
…0101110101110
310222110110101210
43121312232232
5104110000142
65400015250
71262264526
oct331665656
9128413353
1057109422
112a267177
1217161526
13baa7376
147828686
15503149c
hex3676bae

57109422 has 8 divisors (see below), whose sum is σ = 114218856. Its totient is φ = 19036472.

The previous prime is 57109387. The next prime is 57109427. The reversal of 57109422 is 22490175.

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

57109422 is an admirable number.

It is a super-2 number, since 2×571094222 = 6522972162348168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 57109422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57109427) 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 3 ways as a sum of consecutive naturals, for example, 4759113 + ... + 4759124.

It is an arithmetic number, because the mean of its divisors is an integer number (14277357).

Almost surely, 257109422 is an apocalyptic number.

57109422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57109422 is a wasteful number, since it uses less digits than its factorization.

57109422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9518242.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 57109422 is about 7557.0776097642. The cubic root of 57109422 is about 385.0962192746.

Adding to 57109422 its reverse (22490175), we get a palindrome (79599597).

The spelling of 57109422 in words is "fifty-seven million, one hundred nine thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9518237 19036474 28554711 57109422