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10220012123 = 239233318329
BaseRepresentation
bin10011000010010100…
…10000001001011011
3222101020202102000112
421201022100021123
5131412310341443
64410042154535
7511155445466
oct114112201133
928336672015
1010220012123
114374a26412
121b927b2a4b
13c6b460569
146cd4742dd
153ec36bb18
hex26129025b

10220012123 has 8 divisors (see below), whose sum is σ = 10267732800. Its totient is φ = 10172333248.

The previous prime is 10220012093. The next prime is 10220012137. The reversal of 10220012123 is 32121002201.

It is a happy number.

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 10220012123 - 222 = 10215817819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220012098 and 10220012107.

It is not an unprimeable number, because it can be changed into a prime (10220012623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548423 + ... + 566751.

It is an arithmetic number, because the mean of its divisors is an integer number (1283466600).

Almost surely, 210220012123 is an apocalyptic number.

10220012123 is a deficient number, since it is larger than the sum of its proper divisors (47720677).

10220012123 is a wasteful number, since it uses less digits than its factorization.

10220012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20901.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10220012123 its reverse (32121002201), we get a palindrome (42341014324).

The spelling of 10220012123 in words is "ten billion, two hundred twenty million, twelve thousand, one hundred twenty-three".

Divisors: 1 239 2333 18329 557587 4380631 42761557 10220012123