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1223410431 = 37312743987
BaseRepresentation
bin100100011101011…
…1100001011111111
310011021001200121110
41020322330023333
510001143113211
6321221533103
742213550155
oct11072741377
93137050543
101223410431
11578646401
122a1874193
131665cccc9
14b86a53d5
1572611ea6
hex48ebc2ff

1223410431 has 16 divisors (see below), whose sum is σ = 1666617344. Its totient is φ = 798081984.

The previous prime is 1223410421. The next prime is 1223410471. The reversal of 1223410431 is 1340143221.

It is not a de Polignac number, because 1223410431 - 214 = 1223394047 is a prime.

It is a super-2 number, since 2×12234104312 = 2993466165359211522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223410398 and 1223410407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223410421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5820 + ... + 49806.

It is an arithmetic number, because the mean of its divisors is an integer number (104163584).

Almost surely, 21223410431 is an apocalyptic number.

1223410431 is a deficient number, since it is larger than the sum of its proper divisors (443206913).

1223410431 is a wasteful number, since it uses less digits than its factorization.

1223410431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44190.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1223410431 is about 34977.2845000866. The cubic root of 1223410431 is about 1069.5244723677.

Adding to 1223410431 its reverse (1340143221), we get a palindrome (2563553652).

The spelling of 1223410431 in words is "one billion, two hundred twenty-three million, four hundred ten thousand, four hundred thirty-one".

Divisors: 1 3 73 127 219 381 9271 27813 43987 131961 3211051 5586349 9633153 16759047 407803477 1223410431