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550304031 = 3677138561
BaseRepresentation
bin100000110011001…
…111100100011111
31102100111100012210
4200303033210133
52111334212111
6130334531503
716431335634
oct4063174437
91370440183
10550304031
112626a5622
12134366b93
138a0189b4
145312c18b
15334a30a6
hex20ccf91f

550304031 has 16 divisors (see below), whose sum is σ = 755198208. Its totient is φ = 356294400.

The previous prime is 550304023. The next prime is 550304039. The reversal of 550304031 is 130403055.

It is an interprime number because it is at equal distance from previous prime (550304023) and next prime (550304039).

It is not a de Polignac number, because 550304031 - 23 = 550304023 is a prime.

It is a super-2 number, since 2×5503040312 = 605669053069697922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550303989 and 550304007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550304039) 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, 5010 + ... + 33551.

It is an arithmetic number, because the mean of its divisors is an integer number (47199888).

Almost surely, 2550304031 is an apocalyptic number.

550304031 is a deficient number, since it is larger than the sum of its proper divisors (204894177).

550304031 is a wasteful number, since it uses less digits than its factorization.

550304031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38702.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 550304031 is about 23458.5598662834. The cubic root of 550304031 is about 819.4722119219.

Adding to 550304031 its reverse (130403055), we get a palindrome (680707086).

The spelling of 550304031 in words is "five hundred fifty million, three hundred four thousand, thirty-one".

Divisors: 1 3 67 71 201 213 4757 14271 38561 115683 2583587 2737831 7750761 8213493 183434677 550304031