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13123310224 = 243892108501
BaseRepresentation
bin11000011100011010…
…11101001010010000
31020212120211020021211
430032031131022100
5203334031411344
610010114025504
7643131203443
oct141615351220
936776736254
1013123310224
115624848232
122662b78294
131311ab752b
148c6ca765a
1551c1ad334
hex30e35d290

13123310224 has 20 divisors (see below), whose sum is σ = 25491789180. Its totient is φ = 6544784000.

The previous prime is 13123310141. The next prime is 13123310227. The reversal of 13123310224 is 42201332131.

It can be written as a sum of positive squares in 2 ways, for example, as 6918912400 + 6204397824 = 83180^2 + 78768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13123310195 and 13123310204.

It is not an unprimeable number, because it can be changed into a prime (13123310227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048027 + ... + 1060474.

It is an arithmetic number, because the mean of its divisors is an integer number (1274589459).

Almost surely, 213123310224 is an apocalyptic number.

It is an amenable number.

13123310224 is a deficient number, since it is larger than the sum of its proper divisors (12368478956).

13123310224 is a wasteful number, since it uses less digits than its factorization.

13123310224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108898 (or 2108892 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13123310224 its reverse (42201332131), we get a palindrome (55324642355).

The spelling of 13123310224 in words is "thirteen billion, one hundred twenty-three million, three hundred ten thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 389 778 1556 3112 6224 2108501 4217002 8434004 16868008 33736016 820206889 1640413778 3280827556 6561655112 13123310224