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23012210 = 2513229773
BaseRepresentation
bin101011111001…
…0001101110010
31121022010211002
41113302031302
521342342320
62141122002
7366412664
oct127621562
947263732
1023012210
1111a98461
127859302
1349c94c0
1430b0534
152048675
hex15f2372

23012210 has 32 divisors (see below), whose sum is σ = 44861040. Its totient is φ = 8448768.

The previous prime is 23012191. The next prime is 23012219. The reversal of 23012210 is 1221032.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5564881 + 17447329 = 2359^2 + 4177^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23012191 and 23012200.

It is not an unprimeable number, because it can be changed into a prime (23012219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29384 + ... + 30156.

Almost surely, 223012210 is an apocalyptic number.

23012210 is a deficient number, since it is larger than the sum of its proper divisors (21848830).

23012210 is a wasteful number, since it uses less digits than its factorization.

23012210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 23012210 is about 4797.1043349087. The cubic root of 23012210 is about 284.4370131635.

Adding to 23012210 its reverse (1221032), we get a palindrome (24233242).

The spelling of 23012210 in words is "twenty-three million, twelve thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 65 130 229 458 773 1145 1546 2290 2977 3865 5954 7730 10049 14885 20098 29770 50245 100490 177017 354034 885085 1770170 2301221 4602442 11506105 23012210