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10012123223 = 79199636863
BaseRepresentation
bin10010101001100010…
…01110000001010111
3221211202120120001122
421110301032001113
5131001100420343
64333254314155
7503052433424
oct112461160127
927752516048
1010012123223
114278645403
121b3505895b
13c3737358b
146ad9dad4b
153d8ea5068
hex254c4e057

10012123223 has 8 divisors (see below), whose sum is σ = 10189824000. Its totient is φ = 9835696728.

The previous prime is 10012123213. The next prime is 10012123237. The reversal of 10012123223 is 32232121001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10012123223 is a prime.

It is a super-2 number, since 2×100121232232 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012123213) 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, 302711 + ... + 334152.

It is an arithmetic number, because the mean of its divisors is an integer number (1273728000).

Almost surely, 210012123223 is an apocalyptic number.

10012123223 is a deficient number, since it is larger than the sum of its proper divisors (177700777).

10012123223 is an equidigital number, since it uses as much as digits as its factorization.

10012123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637141.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10012123223 its reverse (32232121001), we get a palindrome (42244244224).

The spelling of 10012123223 in words is "ten billion, twelve million, one hundred twenty-three thousand, two hundred twenty-three".

Divisors: 1 79 199 15721 636863 50312177 126735737 10012123223