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551542033 = 7175718117
BaseRepresentation
bin100000110111111…
…101110100010001
31102102211020102201
4200313331310101
52112143321113
6130421243201
716445013160
oct4067756421
91372736381
10551542033
11263370769
12134863501
138a360343
14533713d7
1533649cdd
hex20dfdd11

551542033 has 16 divisors (see below), whose sum is σ = 668663424. Its totient is φ = 444107520.

The previous prime is 551542021. The next prime is 551542063. The reversal of 551542033 is 330245155.

It is a cyclic number.

It is not a de Polignac number, because 551542033 - 213 = 551533841 is a prime.

It is a super-3 number, since 3×5515420333 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 551541992 and 551542010.

It is not an unprimeable number, because it can be changed into a prime (551542063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63891 + ... + 72007.

It is an arithmetic number, because the mean of its divisors is an integer number (41791464).

Almost surely, 2551542033 is an apocalyptic number.

It is an amenable number.

551542033 is a deficient number, since it is larger than the sum of its proper divisors (117121391).

551542033 is a wasteful number, since it uses less digits than its factorization.

551542033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8712.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 551542033 is about 23484.9320416304. The cubic root of 551542033 is about 820.0862654634.

Adding to 551542033 its reverse (330245155), we get a palindrome (881787188).

The spelling of 551542033 in words is "five hundred fifty-one million, five hundred forty-two thousand, thirty-three".

Divisors: 1 7 17 119 571 3997 8117 9707 56819 67949 137989 965923 4634807 32443649 78791719 551542033