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23105829 = 352114783
BaseRepresentation
bin101100000100…
…1000100100101
31121110220020110
41120021010211
521403341304
62143123233
7400252635
oct130110445
947426213
1023105829
111205182a
1278a3519
134a2ccb6
1430d66c5
152066289
hex1609125

23105829 has 8 divisors (see below), whose sum is σ = 30868992. Its totient is φ = 15373280.

The previous prime is 23105807. The next prime is 23105833. The reversal of 23105829 is 92850132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23105829 - 27 = 23105701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23105796 and 23105805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23105879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5829 + ... + 8954.

It is an arithmetic number, because the mean of its divisors is an integer number (3858624).

Almost surely, 223105829 is an apocalyptic number.

It is an amenable number.

23105829 is a deficient number, since it is larger than the sum of its proper divisors (7763163).

23105829 is a wasteful number, since it uses less digits than its factorization.

23105829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15307.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 23105829 is about 4806.8522964618. The cubic root of 23105829 is about 284.8222098271.

The spelling of 23105829 in words is "twenty-three million, one hundred five thousand, eight hundred twenty-nine".

Divisors: 1 3 521 1563 14783 44349 7701943 23105829