Search a number
-
+
2066668 = 221971383
BaseRepresentation
bin111111000100011101100
310212222221021
413320203230
51012113133
6112143524
723365162
oct7704354
93788837
102066668
11119179a
12837ba4
135748a6
143bb232
152ac52d
hex1f88ec

2066668 has 24 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 962640.

The previous prime is 2066653. The next prime is 2066681. The reversal of 2066668 is 8666602.

It is a super-2 number, since 2×20666682 = 8542233244448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5205 + ... + 5587.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

22066668 is an apocalyptic number.

It is an amenable number.

2066668 is a deficient number, since it is larger than the sum of its proper divisors (1804052).

2066668 is a wasteful number, since it uses less digits than its factorization.

2066668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 2066668 is about 1437.5910405953. The cubic root of 2066668 is about 127.3767718784.

The spelling of 2066668 in words is "two million, sixty-six thousand, six hundred sixty-eight".

Divisors: 1 2 4 19 38 71 76 142 284 383 766 1349 1532 2698 5396 7277 14554 27193 29108 54386 108772 516667 1033334 2066668