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57054222 = 2323785667
BaseRepresentation
bin1101100110100…
…1010000001110
310222100122200100
43121221100032
5104101213342
65354511530
71261644561
oct331512016
9128318610
1057054222
112a229755
12171355a6
13ba881c4
1478124d8
15501ee4c
hex366940e

57054222 has 24 divisors (see below), whose sum is σ = 126959976. Its totient is φ = 18503856.

The previous prime is 57054211. The next prime is 57054253. The reversal of 57054222 is 22245075.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42168 + ... + 43499.

It is an arithmetic number, because the mean of its divisors is an integer number (5289999).

Almost surely, 257054222 is an apocalyptic number.

57054222 is an abundant number, since it is smaller than the sum of its proper divisors (69905754).

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

57054222 is a wasteful number, since it uses less digits than its factorization.

57054222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85712 (or 85709 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 57054222 is about 7553.4245213678. The cubic root of 57054222 is about 384.9721056982.

Adding to 57054222 its reverse (22245075), we get a palindrome (79299297).

The spelling of 57054222 in words is "fifty-seven million, fifty-four thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 37 74 111 222 333 666 85667 171334 257001 514002 771003 1542006 3169679 6339358 9509037 19018074 28527111 57054222