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553872668 = 22187773771
BaseRepresentation
bin100001000000110…
…110110100011100
31102121012122110112
4201000312310130
52113242411133
6130543225152
716503561056
oct4100666434
91377178415
10553872668
11264712808
121355a81b8
138a99810b
14537ba8d6
153395a648
hex21036d1c

553872668 has 12 divisors (see below), whose sum is σ = 969806712. Its totient is φ = 276785040.

The previous prime is 553872661. The next prime is 553872673. The reversal of 553872668 is 866278355.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553872661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29378 + ... + 44393.

It is an arithmetic number, because the mean of its divisors is an integer number (80817226).

Almost surely, 2553872668 is an apocalyptic number.

It is an amenable number.

553872668 is a deficient number, since it is larger than the sum of its proper divisors (415934044).

553872668 is a wasteful number, since it uses less digits than its factorization.

553872668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75652 (or 75650 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 50.

The square root of 553872668 is about 23534.4995272897. The cubic root of 553872668 is about 821.2397803581.

The spelling of 553872668 in words is "five hundred fifty-three million, eight hundred seventy-two thousand, six hundred sixty-eight".

Divisors: 1 2 4 1877 3754 7508 73771 147542 295084 138468167 276936334 553872668