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1000223430 = 23543775367
BaseRepresentation
bin111011100111100…
…011001011000110
32120201002121121020
4323213203023012
54022024122210
6243130132010
733533521203
oct7347431306
92521077536
101000223430
11473666738
1223ab81006
1312c2b7aab
1496ba8caa
155cc27770
hex3b9e32c6

1000223430 has 32 divisors (see below), whose sum is σ = 2456365824. Its totient is φ = 260522976.

The previous prime is 1000223429. The next prime is 1000223431. The reversal of 1000223430 is 343220001.

Adding to 1000223430 its reverse (343220001), we get a palindrome (1343443431).

It is an interprime number because it is at equal distance from previous prime (1000223429) and next prime (1000223431).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000223431) 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, 386394 + ... + 388973.

It is an arithmetic number, because the mean of its divisors is an integer number (76761432).

Almost surely, 21000223430 is an apocalyptic number.

1000223430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000223430 is an abundant number, since it is smaller than the sum of its proper divisors (1456142394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000223430 is a wasteful number, since it uses less digits than its factorization.

1000223430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775420.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1000223430 is about 31626.3091428640. The cubic root of 1000223430 is about 1000.0744711206.

The spelling of 1000223430 in words is "one billion, two hundred twenty-three thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 775367 1550734 2326101 3876835 4652202 7753670 11630505 23261010 33340781 66681562 100022343 166703905 200044686 333407810 500111715 1000223430