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20726792947080 = 233451121912772179
BaseRepresentation
bin1001011011001110101010…
…01000011000010110001000
32201101110110211121122020000
410231213111020120112020
510204041432443301310
6112025431321203000
74236314152110513
oct455472510302610
981343424548200
1020726792947080
1166712022aa400
1223a8ba9030460
13b746b3577bcc
14519279aa7d7a
1525e2412244c0
hex12d9d5218588

20726792947080 has 960 divisors, whose sum is σ = 80704335096000. Its totient is φ = 4754309852160.

The previous prime is 20726792947037. The next prime is 20726792947097. The reversal of 20726792947080 is 8074929762702.

20726792947080 is a `hidden beast` number, since 2 + 0 + 7 + 2 + 67 + 9 + 29 + 470 + 80 = 666.

It is a super-2 number, since 2×207267929470802 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20726792946999 and 20726792947017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 9512065431 + ... + 9512067609.

It is an arithmetic number, because the mean of its divisors is an integer number (84067015725).

Almost surely, 220726792947080 is an apocalyptic number.

20726792947080 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 20726792947080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40352167548000).

20726792947080 is an abundant number, since it is smaller than the sum of its proper divisors (59977542148920).

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

20726792947080 is a wasteful number, since it uses less digits than its factorization.

20726792947080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520 (or 3496 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 20726792947080 in words is "twenty trillion, seven hundred twenty-six billion, seven hundred ninety-two million, nine hundred forty-seven thousand, eighty".