Search a number
-
+
66884350 = 25213432393
BaseRepresentation
bin1111111100100…
…1001011111110
311122212002002011
43333021023332
5114110244400
610345321434
71441336051
oct377111376
9148762064
1066884350
1134833225
121a49627a
1310b1a650
148c50a98
155d128ba
hex3fc92fe

66884350 has 48 divisors (see below), whose sum is σ = 137147472. Its totient is φ = 24111360.

The previous prime is 66884333. The next prime is 66884369. The reversal of 66884350 is 5348866.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26754 + ... + 29146.

It is an arithmetic number, because the mean of its divisors is an integer number (2857239).

Almost surely, 266884350 is an apocalyptic number.

66884350 is an abundant number, since it is smaller than the sum of its proper divisors (70263122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66884350 is a wasteful number, since it uses less digits than its factorization.

66884350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 66884350 is about 8178.2852725984. The cubic root of 66884350 is about 405.9209848901.

The spelling of 66884350 in words is "sixty-six million, eight hundred eighty-four thousand, three hundred fifty".

Divisors: 1 2 5 10 13 25 26 43 50 65 86 130 215 325 430 559 650 1075 1118 2150 2393 2795 4786 5590 11965 13975 23930 27950 31109 59825 62218 102899 119650 155545 205798 311090 514495 777725 1028990 1337687 1555450 2572475 2675374 5144950 6688435 13376870 33442175 66884350