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23689701 = 3272316349
BaseRepresentation
bin101101001011…
…1100111100101
31122120120011100
41122113213211
522031032301
62203430313
7405234120
oct132274745
948516140
1023689701
1112410472
127b25399
134ba5999
1432093b7
15212e286
hex16979e5

23689701 has 24 divisors (see below), whose sum is σ = 40809600. Its totient is φ = 12947616.

The previous prime is 23689697. The next prime is 23689703. The reversal of 23689701 is 10798632.

It is not a de Polignac number, because 23689701 - 22 = 23689697 is a prime.

It is a super-2 number, since 2×236897012 = 1122403866938802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23689703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6726 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (1700400).

Almost surely, 223689701 is an apocalyptic number.

23689701 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23689701 is a deficient number, since it is larger than the sum of its proper divisors (17119899).

23689701 is a wasteful number, since it uses less digits than its factorization.

23689701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16385 (or 16382 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 23689701 is about 4867.2066937824. The cubic root of 23689701 is about 287.2013826965.

The spelling of 23689701 in words is "twenty-three million, six hundred eighty-nine thousand, seven hundred one".

Divisors: 1 3 7 9 21 23 63 69 161 207 483 1449 16349 49047 114443 147141 343329 376027 1029987 1128081 2632189 3384243 7896567 23689701