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23662130 = 2517181769
BaseRepresentation
bin101101001000…
…0111000110010
31122112011100012
41122100320302
522024142010
62203054522
7405060542
oct132207062
948464305
1023662130
11123a1788
127b11442
134b9627b
1431dd322
152126005
hex1690e32

23662130 has 32 divisors (see below), whose sum is σ = 45405360. Its totient is φ = 8847360.

The previous prime is 23662117. The next prime is 23662139. The reversal of 23662130 is 3126632.

It can be written as a sum of positive squares in 8 ways, for example, as 4800481 + 18861649 = 2191^2 + 4343^2 .

It is a super-2 number, since 2×236621302 = 1119792792273800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23662096 and 23662105.

It is not an unprimeable number, because it can be changed into a prime (23662139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30386 + ... + 31154.

Almost surely, 223662130 is an apocalyptic number.

23662130 is a deficient number, since it is larger than the sum of its proper divisors (21743230).

23662130 is a wasteful number, since it uses less digits than its factorization.

23662130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23662130 is about 4864.3735465114. The cubic root of 23662130 is about 287.0899207123.

Adding to 23662130 its reverse (3126632), we get a palindrome (26788762).

The spelling of 23662130 in words is "twenty-three million, six hundred sixty-two thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 181 362 769 905 1538 1810 3077 3845 6154 7690 13073 15385 26146 30770 65365 130730 139189 278378 695945 1391890 2366213 4732426 11831065 23662130