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57740406 = 239623401
BaseRepresentation
bin1101110001000…
…0110001110110
311000122111221120
43130100301312
5104240143111
65421324410
71300533243
oct334206166
9130574846
1057740406
112a658249
1217406706
13bc68629
1479505ca
155108406
hex3710c76

57740406 has 8 divisors (see below), whose sum is σ = 115480824. Its totient is φ = 19246800.

The previous prime is 57740377. The next prime is 57740407. The reversal of 57740406 is 60404775.

57740406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

57740406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57740407) 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 in 3 ways as a sum of consecutive naturals, for example, 4811695 + ... + 4811706.

It is an arithmetic number, because the mean of its divisors is an integer number (14435103).

Almost surely, 257740406 is an apocalyptic number.

57740406 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.

57740406 is a wasteful number, since it uses less digits than its factorization.

57740406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9623406.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 57740406 is about 7598.7108117101. The cubic root of 57740406 is about 386.5092966752.

The spelling of 57740406 in words is "fifty-seven million, seven hundred forty thousand, four hundred six".

Divisors: 1 2 3 6 9623401 19246802 28870203 57740406