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23189069849 = 1115113960909
BaseRepresentation
bin10101100110001011…
…010010000000011001
32012212002022210122212
4111212023102000121
5334442400213344
614353010124505
71450434561431
oct254613220031
965762283585
1023189069849
11991a697440
1245b1b80735
1322572ba40a
14119da672c1
1590ac0a79e
hex5662d2019

23189069849 has 8 divisors (see below), whose sum is σ = 25464699840. Its totient is φ = 20941362000.

The previous prime is 23189069831. The next prime is 23189069863. The reversal of 23189069849 is 94896098132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23189069849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23189069879) 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, 6978794 + ... + 6982115.

It is an arithmetic number, because the mean of its divisors is an integer number (3183087480).

Almost surely, 223189069849 is an apocalyptic number.

It is an amenable number.

23189069849 is a deficient number, since it is larger than the sum of its proper divisors (2275629991).

23189069849 is a wasteful number, since it uses less digits than its factorization.

23189069849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13961071.

The product of its (nonzero) digits is 6718464, while the sum is 59.

The spelling of 23189069849 in words is "twenty-three billion, one hundred eighty-nine million, sixty-nine thousand, eight hundred forty-nine".

Divisors: 1 11 151 1661 13960909 153569999 2108097259 23189069849