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20452512000620 = 2257599243888767
BaseRepresentation
bin1001010011001111110001…
…01101100110101001101100
32200102020111201121220022102
410221213320231212221230
510140043221033004440
6111255430532434232
74210434212405420
oct451477055465154
980366451556272
1020452512000620
116575952912757
122363a00a78978
13b54881c3359b
14509c9a606b80
1525703b920b15
hex1299f8b66a6c

20452512000620 has 48 divisors (see below), whose sum is σ = 49167975628800. Its totient is φ = 7000583139264.

The previous prime is 20452512000593. The next prime is 20452512000629. The reversal of 20452512000620 is 2600021525402.

It is a super-2 number, since 2×204525120006202 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20452512000629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121860524 + ... + 122028243.

It is an arithmetic number, because the mean of its divisors is an integer number (1024332825600).

Almost surely, 220452512000620 is an apocalyptic number.

20452512000620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20452512000620 is an abundant number, since it is smaller than the sum of its proper divisors (28715463628180).

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

20452512000620 is a wasteful number, since it uses less digits than its factorization.

20452512000620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243889382 (or 243889380 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 20452512000620 in words is "twenty trillion, four hundred fifty-two billion, five hundred twelve million, six hundred twenty", and thus it is an aban number.

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 599 1198 2396 2995 4193 5990 8386 11980 16772 20965 41930 83860 243888767 487777534 975555068 1219443835 1707221369 2438887670 3414442738 4877775340 6828885476 8536106845 17072213690 34144427380 146089371433 292178742866 584357485732 730446857165 1022625600031 1460893714330 2045251200062 2921787428660 4090502400124 5113128000155 10226256000310 20452512000620