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2069668 = 22517417
BaseRepresentation
bin111111001010010100100
310220011001101
413321102210
51012212133
6112205444
723410006
oct7712244
93804041
102069668
111193a77
12839884
13576073
143bc376
152ad37d
hex1f94a4

2069668 has 6 divisors (see below), whose sum is σ = 3621926. Its totient is φ = 1034832.

The previous prime is 2069657. The next prime is 2069671. The reversal of 2069668 is 8669602.

It can be written as a sum of positive squares in only one way, i.e., 2050624 + 19044 = 1432^2 + 138^2 .

It is a super-3 number, since 3×20696683 = 26596427772163336896, which contains 333 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258705 + ... + 258712.

22069668 is an apocalyptic number.

It is an amenable number.

2069668 is a deficient number, since it is larger than the sum of its proper divisors (1552258).

2069668 is a wasteful number, since it uses less digits than its factorization.

2069668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517421 (or 517419 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2069668 is about 1438.6340743914. The cubic root of 2069668 is about 127.4383759617.

The spelling of 2069668 in words is "two million, sixty-nine thousand, six hundred sixty-eight".

Divisors: 1 2 4 517417 1034834 2069668