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552660687 = 32503122081
BaseRepresentation
bin100000111100001…
…110111011001111
31102111221001221100
4200330032323033
52112440120222
6130501234143
716460352435
oct4074167317
91374831840
10552660687
11263a65177
12135102953
138a662577
1453582d55
15337bb4ac
hex20f0eecf

552660687 has 12 divisors (see below), whose sum is σ = 799881264. Its totient is φ = 367704960.

The previous prime is 552660659. The next prime is 552660697. The reversal of 552660687 is 786066255.

552660687 is a `hidden beast` number, since 5 + 526 + 60 + 68 + 7 = 666.

It is not a de Polignac number, because 552660687 - 28 = 552660431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (552660637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56514 + ... + 65567.

It is an arithmetic number, because the mean of its divisors is an integer number (66656772).

Almost surely, 2552660687 is an apocalyptic number.

552660687 is a deficient number, since it is larger than the sum of its proper divisors (247220577).

552660687 is a wasteful number, since it uses less digits than its factorization.

552660687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122590 (or 122587 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 552660687 is about 23508.7363973481. The cubic root of 552660687 is about 820.6403321808.

The spelling of 552660687 in words is "five hundred fifty-two million, six hundred sixty thousand, six hundred eighty-seven".

Divisors: 1 3 9 503 1509 4527 122081 366243 1098729 61406743 184220229 552660687