Search a number
-
+
57043413 = 337437019
BaseRepresentation
bin1101100110011…
…0100111010101
310222100002212000
43121212213111
5104100342123
65354345513
71261601220
oct331464725
9128302760
1057043413
112a221619
121712b299
13ba832cb
14780c5b7
15501bb43
hex36669d5

57043413 has 32 divisors (see below), whose sum is σ = 98841600. Its totient is φ = 31833648.

The previous prime is 57043411. The next prime is 57043433. The reversal of 57043413 is 31434075.

It is not a de Polignac number, because 57043413 - 21 = 57043411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57043411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4618 + ... + 11636.

It is an arithmetic number, because the mean of its divisors is an integer number (3088800).

Almost surely, 257043413 is an apocalyptic number.

It is an amenable number.

57043413 is a deficient number, since it is larger than the sum of its proper divisors (41798187).

57043413 is a wasteful number, since it uses less digits than its factorization.

57043413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7078 (or 7072 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 57043413 is about 7552.7089841990. The cubic root of 57043413 is about 384.9477929996.

Adding to 57043413 its reverse (31434075), we get a palindrome (88477488).

The spelling of 57043413 in words is "fifty-seven million, forty-three thousand, four hundred thirteen".

Divisors: 1 3 7 9 21 27 43 63 129 189 301 387 903 1161 2709 7019 8127 21057 49133 63171 147399 189513 301817 442197 905451 1326591 2112719 2716353 6338157 8149059 19014471 57043413