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23001061 = 23398717
BaseRepresentation
bin101011110111…
…1011111100101
31121021120112011
41113233133211
521342013221
62140554221
7366335326
oct127573745
947246464
1023001061
1111a90046
127852971
1349c43c5
1430aa44d
1520451e1
hex15ef7e5

23001061 has 4 divisors (see below), whose sum is σ = 23100012. Its totient is φ = 22902112.

The previous prime is 23001053. The next prime is 23001103. The reversal of 23001061 is 16010032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15952036 + 7049025 = 3994^2 + 2655^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001061 - 23 = 23001053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49126 + ... + 49591.

It is an arithmetic number, because the mean of its divisors is an integer number (5775003).

Almost surely, 223001061 is an apocalyptic number.

It is an amenable number.

23001061 is a deficient number, since it is larger than the sum of its proper divisors (98951).

23001061 is an equidigital number, since it uses as much as digits as its factorization.

23001061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98950.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 23001061 is about 4795.9421389337. The cubic root of 23001061 is about 284.3910708786.

Adding to 23001061 its reverse (16010032), we get a palindrome (39011093).

The spelling of 23001061 in words is "twenty-three million, one thousand, sixty-one".

Divisors: 1 233 98717 23001061