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23089168212 = 22311232174943
BaseRepresentation
bin10101100000001110…
…001011111101010100
32012121010100021101020
4111200032023331110
5334241311340322
614335041001140
71445112456135
oct254016137524
965533307336
1023089168212
119879262900
1245846231b0
13223c6ac616
14119069dc8c
1590207505c
hex56038bf54

23089168212 has 72 divisors (see below), whose sum is σ = 59248065408. Its totient is φ = 6993127680.

The previous prime is 23089168189. The next prime is 23089168213. The reversal of 23089168212 is 21286198032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23089168213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4668613 + ... + 4673555.

Almost surely, 223089168212 is an apocalyptic number.

23089168212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23089168212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29624032704).

23089168212 is an abundant number, since it is smaller than the sum of its proper divisors (36158897196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23089168212 is a wasteful number, since it uses less digits than its factorization.

23089168212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8189 (or 8176 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 23089168212 in words is "twenty-three billion, eighty-nine million, one hundred sixty-eight thousand, two hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 3217 4943 6434 9651 9886 12868 14829 19302 19772 29658 35387 38604 54373 59316 70774 106161 108746 141548 163119 212322 217492 326238 389257 424644 598103 652476 778514 1167771 1196206 1557028 1794309 2335542 2392412 3588618 4671084 7177236 15901631 31803262 47704893 63606524 95409786 174917941 190819572 349835882 524753823 699671764 1049507646 1924097351 2099015292 3848194702 5772292053 7696389404 11544584106 23089168212