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2000919109181 = 71091279921991
BaseRepresentation
bin11101000111100000000…
…100101001111000111101
321002021201111022102201212
4131013200010221320331
5230240340242443211
64131113132414205
7264363432542456
oct35074004517075
97067644272655
102000919109181
11701648745153
1228395b917365
131168bbabb865
146cbb898212d
15370ada3138b
hex1d1e0129e3d

2000919109181 has 8 divisors (see below), whose sum is σ = 2001447936000. Its totient is φ = 2000390366160.

The previous prime is 2000919109127. The next prime is 2000919109193. The reversal of 2000919109181 is 1819019190002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2000919109181 - 222 = 2000914914877 is a prime.

It is a super-2 number, since 2×20009191091812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000919109081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90977096 + ... + 90999086.

It is an arithmetic number, because the mean of its divisors is an integer number (250180992000).

Almost surely, 22000919109181 is an apocalyptic number.

It is an amenable number.

2000919109181 is a deficient number, since it is larger than the sum of its proper divisors (528826819).

2000919109181 is a wasteful number, since it uses less digits than its factorization.

2000919109181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41899.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 2000919109181 in words is "two trillion, nine hundred nineteen million, one hundred nine thousand, one hundred eighty-one".

Divisors: 1 7109 12799 21991 90988091 156334019 281462809 2000919109181