Search a number
-
+
57750489 = 3431109211
BaseRepresentation
bin1101110001001…
…1001111011001
311000200000210000
43130103033121
5104241003424
65421443213
71300604526
oct334231731
9130600700
1057750489
112a664885
1217410509
13bc700b4
14795414d
15510b3c9
hex37133d9

57750489 has 40 divisors (see below), whose sum is σ = 90295040. Its totient is φ = 36741600.

The previous prime is 57750467. The next prime is 57750529. The reversal of 57750489 is 98405775.

It is not a de Polignac number, because 57750489 - 25 = 57750457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57710489) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 273594 + ... + 273804.

It is an arithmetic number, because the mean of its divisors is an integer number (2257376).

Almost surely, 257750489 is an apocalyptic number.

It is an amenable number.

57750489 is a deficient number, since it is larger than the sum of its proper divisors (32544551).

57750489 is a wasteful number, since it uses less digits than its factorization.

57750489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 57750489 is about 7599.3742505551. The cubic root of 57750489 is about 386.5317936098.

The spelling of 57750489 in words is "fifty-seven million, seven hundred fifty thousand, four hundred eighty-nine".

Divisors: 1 3 9 27 31 81 93 109 211 279 327 633 837 981 1899 2511 2943 3379 5697 6541 8829 10137 17091 19623 22999 30411 58869 68997 91233 176607 206991 273699 529821 620973 712969 1862919 2138907 6416721 19250163 57750489