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20069401 = 1117107323
BaseRepresentation
bin100110010001…
…1110000011001
31101202122001011
41030203300121
520114210101
61554053521
7332405242
oct114436031
941678034
1020069401
1110368490
12687a2a1
134208bb1
142945cc9
151b66751
hex1323c19

20069401 has 8 divisors (see below), whose sum is σ = 23181984. Its totient is φ = 17171520.

The previous prime is 20069389. The next prime is 20069417. The reversal of 20069401 is 10496002.

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 20069401 - 221 = 17972249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20069471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53475 + ... + 53848.

It is an arithmetic number, because the mean of its divisors is an integer number (2897748).

Almost surely, 220069401 is an apocalyptic number.

It is an amenable number.

20069401 is a deficient number, since it is larger than the sum of its proper divisors (3112583).

20069401 is a wasteful number, since it uses less digits than its factorization.

20069401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107351.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20069401 is about 4479.8885030768. Note that the first 3 decimals coincide. The cubic root of 20069401 is about 271.7553713533.

The spelling of 20069401 in words is "twenty million, sixty-nine thousand, four hundred one".

Divisors: 1 11 17 187 107323 1180553 1824491 20069401