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20207376288 = 25331131107641
BaseRepresentation
bin10010110100011101…
…000001011110100000
31221011021202002001000
4102310131001132200
5312341042020123
613141054112000
71313520602331
oct226435013640
957137662030
1020207376288
11862a59a990
123abb4ab600
131ba06454b8
14d99a68288
157d4080b43
hex4b47417a0

20207376288 has 384 divisors, whose sum is σ = 67095060480. Its totient is φ = 5861376000.

The previous prime is 20207376253. The next prime is 20207376313. The reversal of 20207376288 is 88267370202.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31524448 + ... + 31525088.

It is an arithmetic number, because the mean of its divisors is an integer number (174726720).

Almost surely, 220207376288 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 20207376288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33547530240).

20207376288 is an abundant number, since it is smaller than the sum of its proper divisors (46887684192).

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

20207376288 is a wasteful number, since it uses less digits than its factorization.

20207376288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

It can be divided in two parts, 20207 and 376288, that added together give a triangular number (396495 = T890).

The spelling of 20207376288 in words is "twenty billion, two hundred seven million, three hundred seventy-six thousand, two hundred eighty-eight".