Search a number
-
+
57397007 = 415212687
BaseRepresentation
bin1101101011110…
…0111100001111
311000000001220002
43122330330033
5104143201012
65410114515
71264603133
oct332747417
9130001802
1057397007
112a443248
121727ba3b
13bb78235
1478a13c3
15508b7c2
hex36bcf0f

57397007 has 8 divisors (see below), whose sum is σ = 58931712. Its totient is φ = 55868800.

The previous prime is 57396961. The next prime is 57397009. The reversal of 57397007 is 70079375.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57397007 - 28 = 57396751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57397009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20018 + ... + 22704.

It is an arithmetic number, because the mean of its divisors is an integer number (7366464).

Almost surely, 257397007 is an apocalyptic number.

57397007 is a deficient number, since it is larger than the sum of its proper divisors (1534705).

57397007 is a wasteful number, since it uses less digits than its factorization.

57397007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249.

The product of its (nonzero) digits is 46305, while the sum is 38.

The square root of 57397007 is about 7576.0812429646. The cubic root of 57397007 is about 385.7415448826.

The spelling of 57397007 in words is "fifty-seven million, three hundred ninety-seven thousand, seven".

Divisors: 1 41 521 2687 21361 110167 1399927 57397007