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23189983402656 = 2537541407315661
BaseRepresentation
bin1010100010111010101101…
…01110010001101010100000
310001002221101211000121012110
411101131112232101222200
511014421041222341111
6121153155321155320
74612264256403210
oct521352656215240
9101087354017173
1023189983402656
1174308a9084094
12272645a62bb40
13cc2a62b83c15
145a2588bd2240
152a33584b35a6
hex151756b91aa0

23189983402656 has 192 divisors, whose sum is σ = 69720109191936. Its totient is φ = 6611416473600.

The previous prime is 23189983402571. The next prime is 23189983402657. The reversal of 23189983402656 is 65620438998132.

It is not an unprimeable number, because it can be changed into a prime (23189983402657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1480739466 + ... + 1480755126.

It is an arithmetic number, because the mean of its divisors is an integer number (363125568708).

Almost surely, 223189983402656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23189983402656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34860054595968).

23189983402656 is an abundant number, since it is smaller than the sum of its proper divisors (46530125789280).

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

23189983402656 is a wasteful number, since it uses less digits than its factorization.

23189983402656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20295 (or 20287 counting only the distinct ones).

The product of its (nonzero) digits is 134369280, while the sum is 66.

The spelling of 23189983402656 in words is "twenty-three trillion, one hundred eighty-nine billion, nine hundred eighty-three million, four hundred two thousand, six hundred fifty-six".