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22153801 is a prime number
BaseRepresentation
bin101010010000…
…0101001001001
31112200112022011
41110200221021
521132410201
62110455521
7356206225
oct124405111
945615264
1022153801
111156152a
1275045a1
134788877
142d29785
151e29151
hex1520a49

22153801 has 2 divisors, whose sum is σ = 22153802. Its totient is φ = 22153800.

The previous prime is 22153777. The next prime is 22153811. The reversal of 22153801 is 10835122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18913801 + 3240000 = 4349^2 + 1800^2 .

It is a cyclic number.

It is not a de Polignac number, because 22153801 - 27 = 22153673 is a prime.

It is not a weakly prime, because it can be changed into another prime (22153811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11076900 + 11076901.

It is an arithmetic number, because the mean of its divisors is an integer number (11076901).

Almost surely, 222153801 is an apocalyptic number.

It is an amenable number.

22153801 is a deficient number, since it is larger than the sum of its proper divisors (1).

22153801 is an equidigital number, since it uses as much as digits as its factorization.

22153801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 22153801 is about 4706.7824466402. The cubic root of 22153801 is about 280.8553816531.

Adding to 22153801 its reverse (10835122), we get a palindrome (32988923).

The spelling of 22153801 in words is "twenty-two million, one hundred fifty-three thousand, eight hundred one".