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23022530 = 252302253
BaseRepresentation
bin101011111010…
…0101111000010
31121022122222022
41113310233002
521343210110
62141241442
7366455036
oct127645702
947278868
1023022530
1111aa5193
127863282
134a010cb
1430b41c6
15204b755
hex15f4bc2

23022530 has 8 divisors (see below), whose sum is σ = 41440572. Its totient is φ = 9209008.

The previous prime is 23022523. The next prime is 23022541. The reversal of 23022530 is 3522032.

It can be written as a sum of positive squares in 2 ways, for example, as 18913801 + 4108729 = 4349^2 + 2027^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 23022499 and 23022508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151117 + ... + 1151136.

Almost surely, 223022530 is an apocalyptic number.

23022530 is a deficient number, since it is larger than the sum of its proper divisors (18418042).

23022530 is a wasteful number, since it uses less digits than its factorization.

23022530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302260.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 23022530 is about 4798.1798632398. The cubic root of 23022530 is about 284.4795261206.

Adding to 23022530 its reverse (3522032), we get a palindrome (26544562).

The spelling of 23022530 in words is "twenty-three million, twenty-two thousand, five hundred thirty".

Divisors: 1 2 5 10 2302253 4604506 11511265 23022530