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23690344 = 233139461
BaseRepresentation
bin101101001011…
…1110001101000
31122120121001011
41122113301220
522031042334
62203433304
7405236026
oct132276150
948517034
1023690344
11124109a7
127b25834
134ba6072
143209716
15212e564
hex1697c68

23690344 has 16 divisors (see below), whose sum is σ = 44566020. Its totient is φ = 11806080.

The previous prime is 23690341. The next prime is 23690347. The reversal of 23690344 is 44309632.

It is an interprime number because it is at equal distance from previous prime (23690341) and next prime (23690347).

It can be written as a sum of positive squares in 2 ways, for example, as 22562500 + 1127844 = 4750^2 + 1062^2 .

It is a super-2 number, since 2×236903442 = 1122464797676672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23690341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2227 + ... + 7234.

Almost surely, 223690344 is an apocalyptic number.

It is an amenable number.

23690344 is a deficient number, since it is larger than the sum of its proper divisors (20875676).

23690344 is a wasteful number, since it uses less digits than its factorization.

23690344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9780 (or 9776 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 23690344 is about 4867.2727476483. The cubic root of 23690344 is about 287.2039811368.

Adding to 23690344 its reverse (44309632), we get a palindrome (67999976).

The spelling of 23690344 in words is "twenty-three million, six hundred ninety thousand, three hundred forty-four".

Divisors: 1 2 4 8 313 626 1252 2504 9461 18922 37844 75688 2961293 5922586 11845172 23690344