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550022031 = 32135718233
BaseRepresentation
bin100000110010001…
…010101110001111
31102022222000101100
4200302022232033
52111301201111
6130324514143
716426052526
oct4062125617
91368860340
10550022031
11262522769
1213424b953
1389c4a530
14530974bd
1533449756
hex20c8ab8f

550022031 has 24 divisors (see below), whose sum is σ = 857192336. Its totient is φ = 337841280.

The previous prime is 550022017. The next prime is 550022041. The reversal of 550022031 is 130220055.

It is a happy number.

It is not a de Polignac number, because 550022031 - 25 = 550021999 is a prime.

It is a super-2 number, since 2×5500220312 = 605048469170729922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550021995 and 550022013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550022041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62691 + ... + 70923.

Almost surely, 2550022031 is an apocalyptic number.

550022031 is a deficient number, since it is larger than the sum of its proper divisors (307170305).

550022031 is a wasteful number, since it uses less digits than its factorization.

550022031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8823 (or 8820 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 550022031 is about 23452.5484969118. The cubic root of 550022031 is about 819.3322101315.

Adding to 550022031 its reverse (130220055), we get a palindrome (680242086).

The spelling of 550022031 in words is "five hundred fifty million, twenty-two thousand, thirty-one".

Divisors: 1 3 9 13 39 117 571 1713 5139 7423 8233 22269 24699 66807 74097 107029 321087 963261 4701043 14103129 42309387 61113559 183340677 550022031