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20607201076 = 22721194710093
BaseRepresentation
bin10011001100010010…
…001110111100110100
31222012011002021112111
4103030102032330310
5314200420413301
613244455500404
71326444214300
oct231422167464
958164067474
1020607201076
1188152561a0
123bb1387704
131c35425107
14dd6bc4d00
1580920c551
hex4cc48ef34

20607201076 has 72 divisors (see below), whose sum is σ = 45816908256. Its totient is φ = 8019506880.

The previous prime is 20607201071. The next prime is 20607201091. The reversal of 20607201076 is 67010270602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20607201071) 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, 2036686 + ... + 2046778.

It is an arithmetic number, because the mean of its divisors is an integer number (636345948).

Almost surely, 220607201076 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 20607201076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22908454128).

20607201076 is an abundant number, since it is smaller than the sum of its proper divisors (25209707180).

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

20607201076 is a wasteful number, since it uses less digits than its factorization.

20607201076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11069 (or 11060 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 20607201076 its reverse (67010270602), we get a palindrome (87617471678).

The spelling of 20607201076 in words is "twenty billion, six hundred seven million, two hundred one thousand, seventy-six".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 947 1078 1894 2156 3788 6629 10093 10417 13258 20186 20834 26516 40372 41668 46403 70651 72919 92806 111023 141302 145838 185612 222046 282604 291676 444092 494557 510433 777161 989114 1020866 1554322 1978228 2041732 3108644 5440127 9558071 10880254 19116142 21760508 38232284 66906497 105138781 133812994 210277562 267625988 420555124 468345479 735971467 936690958 1471942934 1873381916 2943885868 5151800269 10303600538 20607201076