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20020214401 = 111820019491
BaseRepresentation
bin10010101001010011…
…000011101010000001
31220200020120021012021
4102221103003222001
5312000133330101
613110330401441
71306056005005
oct225123035201
956606507167
1020020214401
118543986440
123a68890281
131b70934815
14d7cc68705
157c29105a1
hex4a94c3a81

20020214401 has 4 divisors (see below), whose sum is σ = 21840233904. Its totient is φ = 18200194900.

The previous prime is 20020214399. The next prime is 20020214429. The reversal of 20020214401 is 10441202002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20020214401 - 21 = 20020214399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020214491) 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, 910009735 + ... + 910009756.

It is an arithmetic number, because the mean of its divisors is an integer number (5460058476).

Almost surely, 220020214401 is an apocalyptic number.

It is an amenable number.

20020214401 is a deficient number, since it is larger than the sum of its proper divisors (1820019503).

20020214401 is a wasteful number, since it uses less digits than its factorization.

20020214401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820019502.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20020214401 its reverse (10441202002), we get a palindrome (30461416403).

The spelling of 20020214401 in words is "twenty billion, twenty million, two hundred fourteen thousand, four hundred one".

Divisors: 1 11 1820019491 20020214401