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20004014351 = 71281746681
BaseRepresentation
bin10010101000010101…
…010000100100001111
31220122010002012220102
4102220111100210033
5311432011424401
613104551241315
71305501213356
oct225025204417
956563065812
1020004014351
118535821072
123a6337923b
131b6a481ba9
14d7aa4c99d
157c12b056b
hex4a855090f

20004014351 has 4 divisors (see below), whose sum is σ = 20285761104. Its totient is φ = 19722267600.

The previous prime is 20004014231. The next prime is 20004014389. The reversal of 20004014351 is 15341040002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20004014351 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 (20004004351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140873270 + ... + 140873411.

It is an arithmetic number, because the mean of its divisors is an integer number (5071440276).

Almost surely, 220004014351 is an apocalyptic number.

20004014351 is a deficient number, since it is larger than the sum of its proper divisors (281746753).

20004014351 is an equidigital number, since it uses as much as digits as its factorization.

20004014351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281746752.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20004014351 its reverse (15341040002), we get a palindrome (35345054353).

The spelling of 20004014351 in words is "twenty billion, four million, fourteen thousand, three hundred fifty-one".

Divisors: 1 71 281746681 20004014351