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553109973 = 31323336079
BaseRepresentation
bin100000111101111…
…100100111010101
31102112202220020120
4200331330213111
52113044004343
6130515022153
716464233343
oct4075744725
91375686216
10553109973
11264241789
1213529a959
138a78bc10
145365c993
1533859683
hex20f7c9d5

553109973 has 16 divisors (see below), whose sum is σ = 794680320. Its totient is φ = 340173504.

The previous prime is 553109971. The next prime is 553109981. The reversal of 553109973 is 379901355.

It is a happy number.

It is not a de Polignac number, because 553109973 - 21 = 553109971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (553109971) 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 15 ways as a sum of consecutive naturals, for example, 87948 + ... + 94026.

It is an arithmetic number, because the mean of its divisors is an integer number (49667520).

Almost surely, 2553109973 is an apocalyptic number.

It is an amenable number.

553109973 is a deficient number, since it is larger than the sum of its proper divisors (241570347).

553109973 is a wasteful number, since it uses less digits than its factorization.

553109973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8428.

The product of its (nonzero) digits is 127575, while the sum is 42.

The square root of 553109973 is about 23518.2901801980. The cubic root of 553109973 is about 820.8626520441.

The spelling of 553109973 in words is "five hundred fifty-three million, one hundred nine thousand, nine hundred seventy-three".

Divisors: 1 3 13 39 2333 6079 6999 18237 30329 79027 90987 237081 14182307 42546921 184369991 553109973