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23442433 = 72478417
BaseRepresentation
bin101100101101…
…1010000000001
31122002222222021
41121123100001
522000124213
62154241441
7403154200
oct131332001
948088867
1023442433
1112261713
127a26281
134b1a281
143183237
1520d0d8d
hex165b401

23442433 has 6 divisors (see below), whose sum is σ = 27269826. Its totient is φ = 20093472.

The previous prime is 23442431. The next prime is 23442443. The reversal of 23442433 is 33424432.

It can be written as a sum of positive squares in only one way, i.e., 17405584 + 6036849 = 4172^2 + 2457^2 .

It is not a de Polignac number, because 23442433 - 21 = 23442431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23442398 and 23442407.

It is not an unprimeable number, because it can be changed into a prime (23442431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 239160 + ... + 239257.

It is an arithmetic number, because the mean of its divisors is an integer number (4544971).

Almost surely, 223442433 is an apocalyptic number.

It is an amenable number.

23442433 is a deficient number, since it is larger than the sum of its proper divisors (3827393).

23442433 is an equidigital number, since it uses as much as digits as its factorization.

23442433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478431 (or 478424 counting only the distinct ones).

The product of its digits is 6912, while the sum is 25.

The square root of 23442433 is about 4841.7386340033. The cubic root of 23442433 is about 286.1986370089.

Adding to 23442433 its reverse (33424432), we get a palindrome (56866865).

The spelling of 23442433 in words is "twenty-three million, four hundred forty-two thousand, four hundred thirty-three".

Divisors: 1 7 49 478417 3348919 23442433