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57553412 = 2272055479
BaseRepresentation
bin1101101110001…
…1001000000100
311000022000102212
43123203020010
5104213202122
65413322552
71266124130
oct333431004
9130260385
1057553412
112a53a804
1217336458
13bc01497
1479023c0
1550bcce2
hex36e3204

57553412 has 12 divisors (see below), whose sum is σ = 115106880. Its totient is φ = 24665736.

The previous prime is 57553403. The next prime is 57553471. The reversal of 57553412 is 21435575.

57553412 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1027712 + ... + 1027767.

It is an arithmetic number, because the mean of its divisors is an integer number (9592240).

Almost surely, 257553412 is an apocalyptic number.

It is an amenable number.

57553412 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.

57553412 is a wasteful number, since it uses less digits than its factorization.

57553412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055490 (or 2055488 counting only the distinct ones).

The product of its digits is 21000, while the sum is 32.

The square root of 57553412 is about 7586.3965095426. The cubic root of 57553412 is about 386.0916048796.

Adding to 57553412 its reverse (21435575), we get a palindrome (78988987).

The spelling of 57553412 in words is "fifty-seven million, five hundred fifty-three thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 2055479 4110958 8221916 14388353 28776706 57553412