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20351084675 = 521415957493
BaseRepresentation
bin10010111101000001…
…001110100010000011
31221112022011012212212
4102331001032202003
5313134334202200
613203230212335
71320214236245
oct227501164203
957468135785
1020351084675
1186a3725149
123b3b6540ab
131bc435074c
14db0b96095
157e19bb035
hex4bd04e883

20351084675 has 12 divisors (see below), whose sum is σ = 25237566240. Its totient is φ = 16279434720.

The previous prime is 20351084669. The next prime is 20351084681. The reversal of 20351084675 is 57648015302.

It is an interprime number because it is at equal distance from previous prime (20351084669) and next prime (20351084681).

It is not a de Polignac number, because 20351084675 - 234 = 3171215491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325229 + ... + 382721.

It is an arithmetic number, because the mean of its divisors is an integer number (2103130520).

Almost surely, 220351084675 is an apocalyptic number.

20351084675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20351084675 is a deficient number, since it is larger than the sum of its proper divisors (4886481565).

20351084675 is a wasteful number, since it uses less digits than its factorization.

20351084675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71662 (or 71657 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

Adding to 20351084675 its reverse (57648015302), we get a palindrome (77999099977).

The spelling of 20351084675 in words is "twenty billion, three hundred fifty-one million, eighty-four thousand, six hundred seventy-five".

Divisors: 1 5 25 14159 57493 70795 287465 353975 1437325 814043387 4070216935 20351084675