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23653423 = 195383283
BaseRepresentation
bin101101000111…
…0110000101111
31122111201101201
41122032300233
522023402143
62202550331
7405023263
oct132166057
948451351
1023653423
1112396192
127b083a7
134b92311
1431da0a3
15212364d
hex168ec2f

23653423 has 16 divisors (see below), whose sum is σ = 25764480. Its totient is φ = 21644064.

The previous prime is 23653417. The next prime is 23653451. The reversal of 23653423 is 32435632.

It is a cyclic number.

It is not a de Polignac number, because 23653423 - 25 = 23653391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23653391 and 23653400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23653523) 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, 83440 + ... + 83722.

It is an arithmetic number, because the mean of its divisors is an integer number (1610280).

Almost surely, 223653423 is an apocalyptic number.

23653423 is a deficient number, since it is larger than the sum of its proper divisors (2111057).

23653423 is a wasteful number, since it uses less digits than its factorization.

23653423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438.

The product of its digits is 12960, while the sum is 28.

The square root of 23653423 is about 4863.4784876670. The cubic root of 23653423 is about 287.0547027134.

The spelling of 23653423 in words is "twenty-three million, six hundred fifty-three thousand, four hundred twenty-three".

Divisors: 1 19 53 83 283 1007 1577 4399 5377 14999 23489 83581 284981 446291 1244917 23653423