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2210979985 = 53114264387
BaseRepresentation
bin1000001111001000…
…1110000010010001
312201002100102100121
42003302032002101
514012002324420
61003220550241
7105535006534
oct20362160221
95632312317
102210979985
11a35049a95
12518552381
132930a72a6
1416d8d8a1b
15ce18a2aa
hex83c8e091

2210979985 has 8 divisors (see below), whose sum is σ = 2738762496. Its totient is φ = 1711726320.

The previous prime is 2210979961. The next prime is 2210979989. The reversal of 2210979985 is 5899790122.

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

It is not a de Polignac number, because 2210979985 - 29 = 2210979473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2210979989) 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, 7132039 + ... + 7132348.

It is an arithmetic number, because the mean of its divisors is an integer number (342345312).

Almost surely, 22210979985 is an apocalyptic number.

It is an amenable number.

2210979985 is a deficient number, since it is larger than the sum of its proper divisors (527782511).

2210979985 is a wasteful number, since it uses less digits than its factorization.

2210979985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14264423.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 2210979985 is about 47021.0589523460. The cubic root of 2210979985 is about 1302.7515654495.

The spelling of 2210979985 in words is "two billion, two hundred ten million, nine hundred seventy-nine thousand, nine hundred eighty-five".

Divisors: 1 5 31 155 14264387 71321935 442195997 2210979985