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20075081085461 = 88337336090299
BaseRepresentation
bin1001001000010000110000…
…00100111011001000010101
32122002011021220202211102202
410210020120010323020111
510112402231224213321
6110410210454214245
74141243136512523
oct444103004731025
978064256684382
1020075081085461
11643a880a09896
122302828054385
13b280c230a41c
144d58d3a01313
1524c2eb5b870b
hex12421813b215

20075081085461 has 8 divisors (see below), whose sum is σ = 20103203296800. Its totient is φ = 20046971063952.

The previous prime is 20075081085439. The next prime is 20075081085467. The reversal of 20075081085461 is 16458018057002.

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 20075081085461 - 226 = 20075013976597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20075081085467) 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, 251090 + ... + 6341388.

It is an arithmetic number, because the mean of its divisors is an integer number (2512900412100).

Almost surely, 220075081085461 is an apocalyptic number.

It is an amenable number.

20075081085461 is a deficient number, since it is larger than the sum of its proper divisors (28122211339).

20075081085461 is an equidigital number, since it uses as much as digits as its factorization.

20075081085461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094915.

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 20075081085461 in words is "twenty trillion, seventy-five billion, eighty-one million, eighty-five thousand, four hundred sixty-one".

Divisors: 1 883 3733 3296239 6090299 5377734017 22735086167 20075081085461