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20010090628080 = 24325742111298353
BaseRepresentation
bin1001000110010111101100…
…10110000000001111110000
32121211221112121202112010200
410203023312112000033300
510110321131200044310
6110320301515155200
74133452461653430
oct443136626001760
977757477675120
1020010090628080
116415260552293
1222b210aa45b00
13b21c359b2c97
144d26ca4522c0
1524a795b969c0
hex1232f65803f0

20010090628080 has 480 divisors, whose sum is σ = 77060469183360. Its totient is φ = 4558283735040.

The previous prime is 20010090628079. The next prime is 20010090628093. The reversal of 20010090628080 is 8082609001002.

20010090628080 is a `hidden beast` number, since 20 + 0 + 1 + 0 + 0 + 9 + 0 + 628 + 0 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2395553184 + ... + 2395561536.

It is an arithmetic number, because the mean of its divisors is an integer number (160542644132).

Almost surely, 220010090628080 is an apocalyptic number.

20010090628080 is a gapful number since it is divisible by the number (20) 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 20010090628080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38530234591680).

20010090628080 is an abundant number, since it is smaller than the sum of its proper divisors (57050378555280).

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

20010090628080 is a wasteful number, since it uses less digits than its factorization.

20010090628080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9929 (or 9920 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

Adding to 20010090628080 its reverse (8082609001002), we get a palindrome (28092699629082).

The spelling of 20010090628080 in words is "twenty trillion, ten billion, ninety million, six hundred twenty-eight thousand, eighty".