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22554011381 = 1111897172343
BaseRepresentation
bin10101000000010100…
…101110011011110101
32011012211100111012212
4111000110232123311
5332142311331011
614210002423205
71425623635136
oct250024563365
964184314185
1022554011381
119624173630
124455361b05
132185868285
14113d595c8d
158c00b508b
hex54052e6f5

22554011381 has 8 divisors (see below), whose sum is σ = 24606586944. Its totient is φ = 20501804320.

The previous prime is 22554011309. The next prime is 22554011383. The reversal of 22554011381 is 18311045522.

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-22554011381 is a prime.

It is a super-2 number, since 2×225540113812 (a number of 22 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 (22554011383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44696 + ... + 217038.

It is an arithmetic number, because the mean of its divisors is an integer number (3075823368).

Almost surely, 222554011381 is an apocalyptic number.

It is an amenable number.

22554011381 is a deficient number, since it is larger than the sum of its proper divisors (2052575563).

22554011381 is a wasteful number, since it uses less digits than its factorization.

22554011381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184251.

The product of its (nonzero) digits is 9600, while the sum is 32.

The spelling of 22554011381 in words is "twenty-two billion, five hundred fifty-four million, eleven thousand, three hundred eighty-one".

Divisors: 1 11 11897 130867 172343 1895773 2050364671 22554011381