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20202004425 = 352793409621
BaseRepresentation
bin10010110100001000…
…100001111111001001
31221010220122011020010
4102310020201333021
5312333203120200
613140343022133
71313424130041
oct226410417711
957126564203
1020202004425
118627560a29
123ab973a949
131b9c4b4395
14d9906a721
157d386e150
hex4b4221fc9

20202004425 has 24 divisors (see below), whose sum is σ = 33823450240. Its totient is φ = 10638014400.

The previous prime is 20202004411. The next prime is 20202004463. The reversal of 20202004425 is 52440020202.

It is not a de Polignac number, because 20202004425 - 24 = 20202004409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1698886 + ... + 1710735.

Almost surely, 220202004425 is an apocalyptic number.

20202004425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20202004425 is a deficient number, since it is larger than the sum of its proper divisors (13621445815).

20202004425 is a wasteful number, since it uses less digits than its factorization.

20202004425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3409713 (or 3409708 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 20202004425 its reverse (52440020202), we get a palindrome (72642024627).

The spelling of 20202004425 in words is "twenty billion, two hundred two million, four thousand, four hundred twenty-five".

Divisors: 1 3 5 15 25 75 79 237 395 1185 1975 5925 3409621 10228863 17048105 51144315 85240525 255721575 269360059 808080177 1346800295 4040400885 6734001475 20202004425