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57444212 = 2276912969
BaseRepresentation
bin1101101100100…
…0011101110100
311000002110122102
43123020131310
5104201203322
65411121232
71265160560
oct333103564
9130073572
1057444212
112a475761
12172a3218
13bb93877
1478b46a0
15509a792
hex36c8774

57444212 has 24 divisors (see below), whose sum is σ = 115093440. Its totient is φ = 24575040.

The previous prime is 57444169. The next prime is 57444223. The reversal of 57444212 is 21244475.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17864 + ... + 20832.

It is an arithmetic number, because the mean of its divisors is an integer number (4795560).

Almost surely, 257444212 is an apocalyptic number.

It is an amenable number.

57444212 is an abundant number, since it is smaller than the sum of its proper divisors (57649228).

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

57444212 is a wasteful number, since it uses less digits than its factorization.

57444212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671 (or 3669 counting only the distinct ones).

The product of its digits is 8960, while the sum is 29.

The square root of 57444212 is about 7579.1959995767. The cubic root of 57444212 is about 385.8472643327.

Adding to 57444212 its reverse (21244475), we get a palindrome (78688687).

The spelling of 57444212 in words is "fifty-seven million, four hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 691 1382 2764 2969 4837 5938 9674 11876 19348 20783 41566 83132 2051579 4103158 8206316 14361053 28722106 57444212