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200608068640 = 25571674332477
BaseRepresentation
bin1011101011010100101…
…1000011010000100000
3201011210201110202212011
42322311023003100200
511241321131144030
6232054051042304
720331153306610
oct2726513032040
9634721422764
10200608068640
1178094030171
1232a672a0394
1315bc02b14c5
1499d0b68a40
155341a37b2a
hex2eb52c3420

200608068640 has 192 divisors, whose sum is σ = 546364030464. Its totient is φ = 68182622208.

The previous prime is 200608068631. The next prime is 200608068677. The reversal of 200608068640 is 46860806002.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 200608068593 and 200608068602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80987082 + ... + 80989558.

It is an arithmetic number, because the mean of its divisors is an integer number (2845645992).

Almost surely, 2200608068640 is an apocalyptic number.

200608068640 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 200608068640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273182015232).

200608068640 is an abundant number, since it is smaller than the sum of its proper divisors (345755961824).

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

200608068640 is a wasteful number, since it uses less digits than its factorization.

200608068640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3091 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 200608068640 in words is "two hundred billion, six hundred eight million, sixty-eight thousand, six hundred forty".