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10231224661 = 78317609681
BaseRepresentation
bin10011000011101010…
…00001100101010101
3222102000212001201201
421201311001211111
5131423143142121
64411122352501
7511352655220
oct114165014525
928360761651
1010231224661
114380294579
121b964bb731
13c70887cb8
146d0b525b7
153ed333e91
hex261d41955

10231224661 has 8 divisors (see below), whose sum is σ = 11833706304. Its totient is φ = 8663962560.

The previous prime is 10231224649. The next prime is 10231224677. The reversal of 10231224661 is 16642213201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10231224661 - 217 = 10231093589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231225661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8804260 + ... + 8805421.

It is an arithmetic number, because the mean of its divisors is an integer number (1479213288).

Almost surely, 210231224661 is an apocalyptic number.

It is an amenable number.

10231224661 is a deficient number, since it is larger than the sum of its proper divisors (1602481643).

10231224661 is an equidigital number, since it uses as much as digits as its factorization.

10231224661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17609771.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 10231224661 its reverse (16642213201), we get a palindrome (26873437862).

The spelling of 10231224661 in words is "ten billion, two hundred thirty-one million, two hundred twenty-four thousand, six hundred sixty-one".

Divisors: 1 7 83 581 17609681 123267767 1461603523 10231224661