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22554412231 = 137921961453
BaseRepresentation
bin10101000000010110…
…010000010011000111
32011012212002212002011
4111000112100103013
5332142412142411
614210015155051
71425630224611
oct250026202307
964185085064
1022554412231
11962441780a
124455515a87
132185978870
14113d65bdb1
158c0143c21
hex5405904c7

22554412231 has 8 divisors (see below), whose sum is σ = 24596828480. Its totient is φ = 20555919072.

The previous prime is 22554412229. The next prime is 22554412241. The reversal of 22554412231 is 13221445522.

It is a happy number.

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

It is not a de Polignac number, because 22554412231 - 21 = 22554412229 is a prime.

It is a super-2 number, since 2×225544122312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22554412193 and 22554412202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22554412211) 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, 10979700 + ... + 10981753.

It is an arithmetic number, because the mean of its divisors is an integer number (3074603560).

Almost surely, 222554412231 is an apocalyptic number.

22554412231 is a deficient number, since it is larger than the sum of its proper divisors (2042416249).

22554412231 is a wasteful number, since it uses less digits than its factorization.

22554412231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21961545.

The product of its digits is 19200, while the sum is 31.

Adding to 22554412231 its reverse (13221445522), we get a palindrome (35775857753).

The spelling of 22554412231 in words is "twenty-two billion, five hundred fifty-four million, four hundred twelve thousand, two hundred thirty-one".

Divisors: 1 13 79 1027 21961453 285498889 1734954787 22554412231