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57281482 = 228640741
BaseRepresentation
bin1101101010000…
…0101111001010
310222210012102101
43122200233022
5104131001412
65403424014
71263612256
oct332405712
9128705371
1057281482
112a374475
121722500a
13bb3778b
147871266
155067457
hex36a0bca

57281482 has 4 divisors (see below), whose sum is σ = 85922226. Its totient is φ = 28640740.

The previous prime is 57281437. The next prime is 57281489. The reversal of 57281482 is 28418275.

57281482 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 49547521 + 7733961 = 7039^2 + 2781^2 .

It is a super-3 number, since 3×572814823 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (57281489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14320369 + ... + 14320372.

Almost surely, 257281482 is an apocalyptic number.

57281482 is a deficient number, since it is larger than the sum of its proper divisors (28640744).

57281482 is a wasteful number, since it uses less digits than its factorization.

57281482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28640743.

The product of its digits is 35840, while the sum is 37.

The square root of 57281482 is about 7568.4530784038. The cubic root of 57281482 is about 385.4825724757.

The spelling of 57281482 in words is "fifty-seven million, two hundred eighty-one thousand, four hundred eighty-two".

Divisors: 1 2 28640741 57281482